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原著論文

[97] M. Tane, S. Suzuki, M. Yamasaki, Y. Kawamura,K. Hagihara, H. Kimizuka,
Insignificant elastic-modulus mismatch and stress partitioning in two-phase Mg–Zn–Y alloys comprised of  α-Mg and long-period stacking ordered phases,
Materials Science and Engineering A, 710 (2018), pp.227-239
https://doi.org/10.1016/j.msea.2017.10.069
[96] K. Hagihara, T. Nakano, M. Todai
Unusual dynamic precipitation softening induced by dislocation glide in biomedical beta-titanium alloys, 
Scientific Reports, 7 (2017), pp.
8056 1-9.  (open access paper)
http://dx.doi.org/10.1038/s41598-017-08211-7
[95] W. Kaita, K. Hagihara, L. A. Rocha, T. Nakano
Plastic deformation mechanisms of biomedical Co-Cr-Mo alloy single crystals with hexagonal close-packed structure
Scripta Materialia,  142 (2018) pp.111-115. (open access paper)
http://dx.doi.org/10.1016/j.scriptamat.2017.08.016
[94] K. HagiharaT. Nakano
Experimental clarification of the cyclic deformation mechanisms of β-type Ti–Nb–Ta–Zr-alloy single crystals developed for the single-crystalline implant 
International Journal of Plasticity, 98 (2017) pp.27-44.  (open access paper)
https://doi.org/10.1016/j.ijplas.2017.06.006
[93] K. Hagihara, T. Ikenishi, H. Araki, T. Nakano
Outstanding compressive creep strength in Cr/Ir-codoped (Mo0.85Nb0.15)Si crystals with the unique cross-lamellar microstructure
Scientific Reports, 7 (2017) pp.3936  1-12.  (open access paper)
http://dx.doi.org/10.1038/s41598-017-04163-0
[92] K. Kimura, K. Hayashi, K. Hagihara, H. Izuno, N. Happo, S. Hosokawa, M. Suzuki, H. Tajiri
In-plane positional fluctuations of zinc atoms in single crystal Mg85Zn6Y9 alloy studied by X-ray fluorescence holography
Materials Transactions, 58 (2017) pp.539-542.
http://dx.
doi.org/10.2320/matertrans.M2016459
[91] T. Ishimoto, K. Hagihara, K. Hisamoto, S.-H.Sun, T. Nakano
Texture control of beta-type Ti–15Zr–5Mo–3Al alloy by selective laser melting for the development of
novel implants with an extremely low Young’s modulus
Scripta Materialia, 132 (2017) pp. 34-38.
http://dx.doi.org/10.1016/j.scriptamat.2016.12.038  (Open access paper)
[90] K. Hagihara, T. Ikenishi, T. Nakano
Development of unique cross-lamellar microstructure, resulting in the drastic increase in 
fracture toughness in Cr/Ir-codoped (Mo0.85Nb0.15)Sicrystals
Scripta Materialia, 131 (2017) pp.19-23.
http://dx.doi.org/10.1016/j.scriptamat.2016.12.029  
[89] K. Hagihara, T.Nakano, M. Suzuki, T. Ishimoto, S. yalatu, S.-H.Sun
Successful additive manufacturing of MoSi2 including crystallographic texture and shape control
Journal of Alloys and Compounds, 696 (2017) pp.67-72.
http://dx.doi.org/10.1016/j.jallcom.2016.11.191     (Open access paper)
[88] M. Todai, T. Nakano, T. Liu, H. Y. Yasuda, K. HagiharaK. Cho, M. Ueda, M.Takayama
Effect of building direction on the microstructure and tensile properties of Ti-48Al-2Cr-2Nb alloy additively manufactured by electron beam melting
Additive Manufacturing, 13 (2017) pp.61-70.
https://dx.doi.org/10.1016/j.addma.2016.11.001    (Open access paper)
[87] K. HagiharaH. Araki, T. Ikenishi, T. Nakano
High-temperature deformation behavior of (Mo0.85Nb0.15)Si2 crystals with C40/C11b lamellar microstructure
Materials Science Forum, 879 (2017) pp.677-683.
http://dx.doi.org/10.4028/www.scientific.net/MSF.879.677
[86] K. Hagihara, T. Nakano, H. Maki, Y. Umakoshi, M. Niinomi
Isotropic plasticity of β-type Ti-29Nb-13Ta-4.6Zr alloy single crystals for the development of single crystalline β-Ti implants
Scientific Reports, 6 (2016) pp.20779 1-10.
http://dx.doi.org/10.1038/srep29779    (Open access paper)
[85] K. Hagihara, T. Nakano, K. Sasaki
Anomalous strengthening behavior of Co–Cr–Mo alloy single crystals for biomedical applications
Scripta Materialia123  (2016) pp.149-153.
http://dx.doi.org/10.1016/j.scriptamat.2016.06.016
[84] K. Hagihara, K. Yuge, T. Ikenishi,  H. Araki, T. Nakano
Effect of additional elements on fracture toughness of (Mo0.85Nb0.15)Si2 C40/C11b lamellar-structured crystals
Materials Letters, 177 (2016) pp.99-103.   
http://dx.doi.org/10.1016/j.matlet.2016.04.132
[83] K. Hagihara, M. Okubo, M. Yamasaki, T. Nakano
Crystal-orientation-dependent corrosion behaviour of single crystals of a pure Mg and Mg-Al and Mg-Cu solid solutions
Corrosion Science, 109 (2016) pp.68-85.
http://dx.doi.org/10.1016/j.corsci.2016.03.019
[82] K. Hagihara, T. Okamoto,  H. Izuno, M. Yamasaki,  M. Matsushita, T. Nakano, Y. Kawamura
Plastic deformation behavior of 10H-type synchronized LPSO phase in a Mg-Zn-Y system
Acta Materialia, 109 (2016) pp.90-102.                                                                                         http://dx.doi.org/10.1016/j.actamat.2016.02.037
[81] K. Hagihara, T. Okamoto, M. Yamasaki, Y. Kawamura, T. Nakano
Electron backscatter diffraction pattern analysis of the deformation band formed in the Mg-based long-period stacking ordered phase
Scripta Materialia, 117 (2016) pp.32-36.
http://dx.doi.org/10.1016/j.scriptamat.2016.02.016
[80] K. Hagihara, H. Araki, T. Ikenishi, T. Nakano
Creep-deformation behavior of (Mo0.85Nb0.15)Si2 lamellar-structured C40/C11b two-phase crystals
Acta Materialia, 107 (2016) pp.196-212.
http://dx.doi.org/10.1016/j.actamat.2016.01.040
[79] K. Hagihara, T. Mayama, M. Honnami, M. Yamasaki, H. Izuno, T. Okamoto, T. Ohashi, T. Nakano, Y. Kawamura
Orientation dependence of the deformation kink band formation behavior in Zn single crystals
International Journal of Plasticity, 77 (2016) pp.174-191.
http://dx.doi.org/10.1016/j.ijplas.2015.10.005
[78] M. Todai, K. Hagihara, K. Kishida, H. Inui, T. Nakano
Microstructure and fracture toughness in boron added NbSi2(C40)/MoSi2(C11b) duplex crystals
Scripta Materialia, 113 (2016) pp.236-240.
http://dx.doi.org/10.1016/j.scriptamat.2015.11.004
[77] M. Tane, K. Hagihara, M. Ueda, T. Nakano, Y. Okuda
Elastic-modulus enhancement during room-temperature aging and its suppression in metastable Ti-Nb-based alloys with low body-centered cubic phase stability
Acta Materialia, 102 (2016) pp.373-384.
http://dx.doi.org/10.1016/j.actamat.2015.09.030
[76] T. Yamazaki, Y. Koizumi, K. Yuge, A. Chiba, K. Hagihara, T. Nakano, K. Kishida, H. Inui
Mechanisms of lamellar structure formation and Cr interfacial segregation in C11b-MoSi2/C40-NbSi2 dual phase silicide verified by a phase-field simulation incorporating elastic inhomogeneity
Computational Materials Science, 108 (2015) pp.358-366.
http://dx.doi.org/10.1016/j.commatsci.2015.04.018
[75] 當代光陽,萩原幸司,石本卓也,山本憲吾,中野貴由
β型Ti-15Mo-5Zr-3Al合金単結晶を用いた低ヤング率ボーンプレートの開発
鉄と鋼, 101 (2015) pp.501-505.
http://doi.org/10.2355/tetsutohagane.TETSU-2015-044
[74] M.Tane, H. Kimizuka, K. Hagihara, S. Suzuki, T. Mayama, T. Sekino, Y. Nagai
Effects of stacking sequence and short-range ordering of solute atoms on elastic properties of Mg-Zn-Y alloys with long-period stacking ordered structures
Acta Materialia, 96 (2015) pp.170-188.
http://dx.doi.org/10.1016/j.actamat.2015.06.005
[73] T. Mayama, T. Ohashi, Y. Tadano, K. Hagihara
Crystal plasticity analysis of development of intragranular misorientations due to kinking in HCP single crystals subjected to uniaxial compressive loading
Materials Transactions, 56 (2015) pp.963-972.
http://doi.org/10.2320/matertrans.MH201403
[72] K. Hagihara, M. Honnami, R. Matsumoto , Y. Fukusumi, H. Izuno, M. Yamasaki, T. Okamoto, T. Nakano, Y. Kawamura
In-situ observation on the formation behavior of the deformation kink bands in Zn single crystal and LPSO phase
Materials Transactions, 56 (2015) pp.943-951.
http://doi.org/10.2320/matertrans.MH201412
[71] K. Hagihara, M. Yamasaki, M. Honnami, H. Izuno, M. Tane, T. Nakano, Y. Kawamura
Crystallographic nature of deformation bands shown in Zn and Mg-based long-period stacking ordered (LPSO) phase
Philosophical Magazine, 95 (2015) pp.132-157.
http://doi.org/10.1080/14786435.2014.987843
[70] K. Hagihara, S. Shakudo, K. Fujii, T. Nakano
Degradation behavior of Ca-Mg-Zn intermetallic compounds for use as biodegradable implant materials
Materials Science Engineering C, 44 (2014) pp.285-292.
http://dx.doi.org/10.1016/j.msec.2014.08.037
[69] Y. Koizumi, T. Yamazaki, K. Yuge, A. Chiba, K. Hagihara, T. Nakano, K. Kishida, H. Inui
Mechanisms of Cr segregation to C11b/C40 lamellar interface in (Mo,Nb)Si2 duplex silicide: a phase-field study to bridge experimental and first-principles investigations
Intermetallics, 54 (2014) pp.232-241.
http://dx.doi.org/10.1016/j.intermet.2014.05.019
[68] K. Hagihara, T. Fushiki, T. Nakano
Control of microstructure and fracture toughness improvement of NbSi2/MoSi2 duplex lamellar silicides by TaC particles dispersion
 Scripta Materialia, 82 (2014) pp.53-56.
http://dx.doi.org/10.1016/j.scriptamat.2014.03.021
[67] M. Yamasaki, M. Matsushita, K. Hagihara, H. Izuno, E. Abe, Y. Kawamura
Highly ordered 10H-type long-period stacking order phase in a Mg-Zn-Y ternary alloy
Scripta Materialia, 78-79 (2014) pp.13-16.
http://dx.doi.org/10.1016/j.scriptamat.2014.01.013
[66] K. Hagihara, Y. Hama, T. Fushiki, K. Yuge, T. Nakano
Microsructure and mechanical properties of the NbSi2/MoSi2 crystal with lamellar structure
Materials Science Forum, 783-786 (2014) pp.1123-1128.
http://dx.doi.org/10.4028/www.scientific.net/MSF.783-786.1123
[65] T. Yamazaki, Y. Koizumi, A. Chiba, K. Hagihara, T. Nakano, K. Yuge, K. Kishida, H. Inui
Interface migration with segregation in MoSi2-based lamellar alloy simulated by phase-field method
Advanced Materials Research, 922 (2014) pp.832-837.
http://dx.doi.org/10.4028/www.scientific.net/AMR.922.832
[64] H. Okuda, T. Horiuchi, T. Maruyama, M. Yamasaki, Y. Kawamura, K. Hagihara, S. Kohara
Development of microstructures of long-period stacking ordered structures in Mg85Y9Zn6 alloys annealed at 673 K (400 ̊C) examined by small-angle X-ray scattering
Metallurgical and Materials Transactions A, 45 (2014) pp.147-151.
http://dx.doi.org/10.1007/s11661-013-1766-z
[63] P. S. Ghosh, A. Arya, U. D. Kulkarni, G. K. Dey, S. Hata, T. Nakano, K. Hagihara, H. Nakashima
Ab-initio study of long-period superstructures and anti-phase boundaries in Al-rich γ-TiAl (L10)-based alloys
Philosophical Magazine, 94 (2014) pp.1202-1218.
http://dx.doi.org/10.1080/14786435.2014.885135
[62] M. Tane, Y. Nagai, H. Kimizuka, K. Hagihara, Y. Kawamura
Elastic properties of an Mg–Zn–Y alloy single crystal with a long-period stacking-ordered structure
Acta Materialia, 61 (2013) pp.6338-6351.
http://dx.doi.org/10.1016/j.actamat.2013.06.041
[61] K. Hagihara, Y. Hama, K. Yuge, T. Nakano
Misfit strain affecting the lamellar microstructure in NbSi2/MoSi2 duplex crystals
Acta Materialia, 61 (2013) pp.3432-3444.
http://dx.doi.org/10.1016/j.actamat.2013.02.035
[60] M. Yamasaki, K. Hagihara, S. Inoue, J.P. Hadorn, Y. Kawamura
Crystallographic classification of kink bands in an extruded Mg–Zn–Y alloy using intragranular misorientation axis analysis
Acta Materialia, 61 (2013) pp.2065-2076.
http://dx.doi.org/10.1016/j.actamat.2012.12.026
[59] K. Hagihara, T. Tanaka, H. Izuno, Y. Umakoshi, T. Nakano
Non-basal slips in Ni3(Ti, Nb) and Ni3(Ti, Al) single crystals with various long-period stacking ordered structures
Acta Materialia, 61 (2013) pp.4365-4373.
http://dx.doi.org/10.1016/j.actamat.2013.04.008
[58] K. Hagihara, Y. Fukusumi, M. Yamasaki, T. Nakano, Y. Kawamura
Non-basal slip systems operative in Mg12ZnY long-period stacking ordered (LPSO) phase with 18R and 14H structures
Materials Transactions, 54 (2013) pp.693-697.
http://doi.org/10.2320/matertrans.MI201208
[57] K. Hagihara, K. Fujii, A. Matsugaki, T. Nakano
Possibility of Mg- and Ca-based intermetallic compounds as new biodegradable implant materials
Materials Science and Engineering C, 33 (2013) pp.4101-4111.
http://dx.doi.org/10.1016/j.msec.2013.05.055
[56] K. Yuge, Y. Koizumi, K. Hagihara, T. Nakano, K. Kishida, H. Inui
Cr segregation at C11b/C40 interface in MoSi2-based alloys: A first-principles study
Intermetallics, 42 (2013) pp.165-169.
http://dx.doi.org/10.1016/j.intermet.2013.06.009
[55] P. S. Ghosh, A. Arya, U. D. Kulkarni, G. K. Dey, T. Nakano, Y. Umakoshi, K. Hagihara, S. Hata
First-principles investigation of phase stability and electronic structure of tetragonal (P4/m) Ga3-xAlxTi2 (x=0-3) compounds
Philosophical Magazine Letters, 93 (2013) pp. 273-282.
http://dx.doi.org/10.1080/09500839.2013.769068
[54] T. Nakano, K. Hagihara
Yield stress anomaly controlled by the phase stability in NbSi2 single crystals
Scripta Materialia, 68 (2013) pp.313-316.
http://dx.doi.org/10.1016/j.scriptamat.2012.10.053
[53] T. Nakano, K. Hagihara, S. Hata, H. Shigyo, H. Nakashima, Y. Umakoshi, A. Arya, U. D. Kulkarni
Long-period ordered superstructures that appear in an (Al,Ga)-rich (Al,Ga)Ti system
Philosophical Magazine, 93 (2013) pp.22-37.
http://dx.doi.org/10.1080/14786435.2012.699691
[52] K. Hagihara, A. Kinoshita, Y. Fukusumi, M. Yamasaki, Y. Kawamura
High-temperature compressive deformation behavior of Mg97Zn1Y2 extruded alloy containing a long-period stacking ordered (LPSO) phase
Materials Science and Engineering A, 560 (2013) pp.71-79.
http://dx.doi.org/10.1016/j.msea.2012.09.016
[51] S.-H. Lee, M. Todai, M. Tane, K. Hagihara, H. Nakajima, T. Nakano
Biocompatible low Young's modulus achieved by Strong crystallographic elastic anisotropy in Ti-15Mo-5Zr-3Al alloy single crystal
Journal of the Mechanical Behavior of Biomedical Materials, 14 (2012) pp.48-54.
http://dx.doi.org/10.1016/j.jmbbm.2012.05.005
[50] K. Yuge, Y. Koizumi, K. Hagihara, T. Nakano, K. Kishida, H. Inui
First-principles study on phase stability of MoSi2-NbSi2 pseudobinary alloys
Physical Review B, 85 (2012) pp.134106-1-6.
http://dx.doi.org/10.1103/PhysRevB.85.134106
[49] S-H. Lee, K. Hagihara, T. Nakano
Microstructural and orientation dependence of the plastic deformation behavior in β-type Ti-15Mo-5Zr-3Al alloy single crystals
Metallurgical and Materials Transactions, 43 (2012) pp.1588-1597.
http://dx.doi.org/10.1007/s11661-011-0986-3
[48] K. Hagihara, A. Kinoshita, Y. Fukusumi, M. Yamasaki, Y. Kawamura
Microstructural factors affecting the deformation behavior of Mg12ZnY LPSO-phase alloys
Materials Science Forum, 706-709 (2012) pp.1158-1163.
http://dx.doi.org/10.4028/www.scientific.net/MSF.706-709.1158
[47] T. Nakano, K. Sasaki, K. Hagihara, T.Ishimoto, Y. Fujii, A. Serizawa
Single crystal growth and its microstructure in Co-Cr-Mo alloys for biomedical applications
Materials Science Forum, 706-709 (2012) pp.561-565.
http://dx.doi.org/10.4028/www.scientific.net/MSF.706-709.561
[46] K. Hagihara, T. Nakano
Fracture behavior and toughness of NbSi2-based single crystals and MoSi2(C11b )/NbSi2(C40) duplex crystals with a single set of lamellae
Acta Materialia, 59 (2011) pp.4168-4176.
http://dx.doi.org/10.1016/j.actamat.2011.03.040
[45] K. Hagihara, Y. Sugino, Y. Fukusumi, Y. Umakoshi, T. Nakano
Plastic deformation behavior of Mg12ZnY LPSO-phase with 14H-typed structure
Materials Transactions, 52 (2011) pp.1096-1103.
http://doi.org/10.2320/matertrans.MC201007
[44] M. Yamasaki, K. Hashimoto, K. Hagihara, Y. Kawamura
Effect of multimodal microstructure evolution on mechanical properties of Mg–Zn–Y extruded alloy
Acta Materialia, 59 (2011) pp.3646–3658.
http://dx.doi.org/10.1016/j.actamat.2011.02.038
[43] O. Zhu, L. Zhang, J. Yu, A. Shan, J. Wu, K. Hagihara, T. Nakano
Effects of Cr-addition and lamellar microstructure on the oxidation behavior of single crystal (Mo0.85Nb0.15)Si2
Journal of Alloys and Compounds, 509 (2011) pp.1511–1516.
http://dx.doi.org/10.1016/j.jallcom.2010.10.138
[42] K. Hagihara, A. Kinoshita, Y. Sugino, M. Yamasaki, Y. Kawamura, H. Y. Yasuda, Y. Umakoshi
Effect of long-period stacking ordered phase on mechanical properties of Mg97Zn1Y2 extruded alloy
Acta Materialia, 58 (2010) pp.6282-6293.
http://dx.doi.org/10.1016/j.actamat.2010.07.050
[41] M. Tane, S. Akita, T. Nakano, K. Hagihara, Y. Umakoshi, H. Mori, H. Nakajima
Low Young's modulus of Ti-Nb-Ta-Zr alloys caused by softening in shear moduli c' and c44 near lower limit of body-centered cubic phase stability
Acta Materialia, 58 (2010) pp.6790-6798.
http://dx.doi.org/10.1016/j.actamat.2010.09.007
[40] K. Hagihara, N. Yokotani, Y. Umakoshi
Plastic deformation behavior of Mg12YZn with 18R long-period stacking ordered structure
Intermetallics, 18 (2010) pp. 267-276.
http://dx.doi.org/10.1016/j.intermet.2009.07.014
[39] K. Hagihara, A. Kinoshita, Y. Sugino, M. Yamasaki, Y. Kawamura, H. Y. Yasuda, Y. Umakoshi
Plastic deformation behavior of Mg89Zn4Y7 extruded alloy composed of long-period stacking ordered phase
Intermetallics,18 (2010) pp.1079-1085.
http://dx.doi.org/10.1016/j.intermet.2010.02.011
[38] K. Hagihara, H. Fujimoto, T. Nakano, Y. Umakoshi
Plastic deformation behavior of Ni3(Ti0.7Nb0.3) single crystals with D019 structure
Intermetallics,18 (2010) pp.434-440.
http://dx.doi.org/10.1016/j.intermet.2009.09.004
[37] M. Yamasaki, K. Hashimoto, K. Hagihara, Y. Kawamura
Multimodal microstructure evolution in wrought Mg-Zn-Y alloys with high strength and increased ductility
Materials Science Forum, 654-656 (2010) pp.615-618.
http://dx.doi.org/10.4028/www.scientific.net/MSF.654-656.615
[36] K. Hagihara, T. Nakano, S. Hata, O. Zhu, Y. Umakoshi
Improvement of aligned lamellar structure by Cr-addition to NbSi2/MoSi2 duplex-silicide crystals
Scripta Materialia, 62 (2010) pp.613-616.
http://dx.doi.org/10.1016/j.scriptamat.2010.01.002
[35] K. Hagihara, A. Kinoshita, Y. Sugino, M. Yamasaki, Y. Kawamura, H. Y. Yasuda, Y. Umakoshi
Plastic deformation behavior of Mg97Zn1Y2 extruded alloys
Transaction of Nonferrous Metal Society of China, 20 (2010) pp.1259-1268.
http://dx.doi.org/10.1016/S1003-6326(09)60288-0
[34] K. Hagihara, M. Mori, T. Kishimoto, Y. Umakoshi
Change in microstructure by heat-treatment and corresponding deformation behavior in Ni3V single crystals
Materials Science Forum, 638-642 (2010) pp.1318-1323.
http://dx.doi.org/10.4028/www.scientific.net/MSF.638-642.1318
[33] M. Hirano, M. Yamasaki, K. Hagihara, K. Higashida, Y. Kawamura
Effect of extrusion parameters on mechanical properties of Mg97Zn1Y2 alloys at room and elevated temperatures
Materials Transactions, 51 (2010) pp.1640-1647.
http://doi.org/10.2320/matertrans.MAW201026
[32] K. Hagihara, A. Kinoshita, Y. Sugino, M. Yamasaki, Y. Kawamura, H. Y. Yasuda, Y. Umakoshi
Temperature dependence of compressive deformation behavior of Mg89Zn4Y7 extruded LPSO-phase alloys
Materials Science Forum, 638-642 (2010) pp.607-610.
http://doi.org/10.4028/www.scientific.net/MSF.654-656.607
[31] K. Hagihara, T. Tachibana, K. Sasaki, Y. Yoshida, N. Shirakawa, T. Nagasawa, T. Narushima, T. Nakano
Oxygen distribution in titanium single crystal fabricated by floating-zone method under extremely low oxygen partial pressure
Materials Transactions, 50 (2009) pp. 2709-2715.
http://doi.org/10.2320/jinstmet.72.928
[30] K. Hagihara, M. Mori, T. Kishimoto, Y. Umakoshi
Influence of heat-treatment on microstructure and plastic deformation behavior in Ni3V single crystals with the D022 structure
Journal of Physics, 165 (2009) pp.012004 1-4.
http://doi.org/10.1088/1742-6596/165/1/012004
[29] S. Lee, K. Hagihara, M.-H. Oh, T. Nakano
Single-crystal growth and plastic deformation behaviour of a Ti-15Mo-5Zr-3Al alloy for biomedical application
Journal of Physics, 165 (2009) pp.012086 1-4.
http://doi.org/10.1088/1742-6596/165/1/012086
[28] 萩原幸司,橘孝洋,佐々木啓太,吉田良由,白河直樹,長澤亨,成島尚之,中野貴由
極低酸素分圧雰囲気下でのTi単結晶の帯溶融育成
日本金属学会誌, 72 (2008) pp.928-934.
http://doi.org/10.2320/jinstmet.72.928
[27] M. Tane, S. Akita, H. Nakajima, T. Nakano, K. Hagihara, Y. Umakoshi, M. Niinomi
Peculiar elastic behavior of Ti-Nb-Ta-Zr single crystals
Acta Materialia, 56 (2008) pp.2856-2863.
http://dx.doi.org/10.1016/j.actamat.2008.02.017
[26] K. Hagihara, T. Tanaka, T. Nakano, P. Veyssiere, Y. Umakoshi
Effects of the anisotropy of the anti-phase boundary energy on the yield stress anomaly in Ni3X compounds with close-packed crystal structures
Philosophical Magazine Letters, 87 (2007) pp.705-712.
http://dx.doi.org/10.1080/09500830701324127
[25] K. Hagihara, M. Mori, Y. Umakoshi
Microstructure and plastic deformation behavior of Ni3V single crystals
Materials Science Forum, 561-565 (2007) pp.407-410.
http://dx.doi.org/10.4028/www.scientific.net/MSF.561-565.407
[24] T. Nakano, T. Tachibana, K. Hagihara, Y. Umakoshi, T. Ide, M. Tane, H. Nakajima
Microstructure and deformation behavior of lamellar Ti-rich TiAl crystal with lotus-type aligned pores
Materials Science Forum, 561-565 (2007) pp.383-386.
http://dx.doi.org/10.4028/www.scientific.net/MSF.561-565.383
[23] K. Hagihara, T. Tanaka, H. Fujimoto, T. Nakano, Y. Umakoshi
Microstructure and plastic deformation behavior of Ni3(Ti, X) (X=Nb, Al) single crystals with long-period geometrically closely-packed crystal structures
Intermetallics,14 (2006) pp.1332-1338.
http://dx.doi.org/10.1016/j.intermet.2005.10.020
[22] K. Hagihara, Y. Sugino, Y. Umakoshi
The effect of Ti-addition on plastic deformation and fracture behavior of directionally solidified NiAl/Cr(Mo) eutectic alloys
Intermetallics,14 (2006) pp.1326-1331.
http://dx.doi.org/10.1016/j.intermet.2005.11.029
[21] K. Hagihara, N. Yokotani, Y. Umakoshi
Temperature and orientation dependence of fracture behavior of directionally solidified duplex-phase crystals composed of Ni3X-type intermetallic compounds
Materials Science Forum , 512 (2006) pp.67-72.
http://dx.doi.org/10.4028/www.scientific.net/MSF.512.67
[20] T. Nakano, K. Hagihara, Y. Nakai, Y. Umakoshi
Plastic deformation behavior of NbSi2/MoSi2 crystals with oriented lamellae
Intermetallics,14 (2006) pp.1345-1350.
http://dx.doi.org/10.1016/j.intermet.2005.10.017
[19] Y. Wu, S.K. Hwang, K. Hagihara, Y. Umakoshi
Isothermal oxidation behavior of two-phase TiAl-Mn-Mo-C-Y alloys fabricated by different processes
Intermetallics, 14 (2006) pp. 9-23.
http://dx.doi.org/10.1016/j.intermet.2005.02.014
[18] Y. Wu, K. Hagihara, Y. Umakoshi
Improvement of cyclic oxidation resistance of Y-containing TiAl-based alloys with equiaxial gamma microstructures
Intermetallics,13 (2005) pp.519-532.
http://dx.doi.org/10.1016/j.intermet.2005.01.014
[17] K. Hagihara, T. Tanaka, T. Nakano, Y. Umakoshi
Plastic deformation behavior of Ni3(Ti0.90Nb0.10) single crystals with nine-layered ordered rhombohedral structure
Acta Materialia, 53 (2005) pp.5051-5059.
http://dx.doi.org/10.1016/j.actamat.2005.07.017
[16] Y. Umakoshi, K. Hagihara, T. Nakano
Deformation modes and anomalous strengthening of Ni3X-type intermetallic compounds with the geometrically close-packed structure
Materials Science Forum, 502 (2005) pp.145-150.
http://dx.doi.org/10.4028/www.scientific.net/MSF.502.145
[15]

K. Hagihara, S. Maeda, T. Nakano, Y. Umakoshi
Indentation fracture behavior of (Mo0.85Nb0.15)Si2 crystals with C40 single-phase and MoSi2(C11b)/NbSi2(C40) duplex-phase with oriented lamellae
Science and Technology of Advanced Materials, 5 (2004) pp.11-17, (2004).
http://dx.doi.org/10.1016/j.stam.2003.09.007

[14] Y. Wu, K. Hagihara, Y. Umakoshi
Influence of Y-addition on the oxidation behavior of Al-rich γ-TiAl alloys
Intermetallics, 12 (2004) pp.519-532.
http://dx.doi.org/10.1016/j.intermet.2004.01.008
[13] K. Hagihara, T. Nakano, Y. Umakoshi
Slip system, dislocation structure and plastic deformation behavior of Ni3Ti single crystals with D024 structure
Materials Science Forum ,426-432 (2003) pp.1709-1714.
http://dx.doi.org/10.4028/www.scientific.net/MSF.426-432.1709
[12] T. Nakano, Y. Omomoto, K. Hagihara, Y. Umakoshi
Plastic deformation behavior and operative slip systems of ZrSi2 single crystals with C49 type of structure
Scripta Materialia, 48 (2003) pp.1307-1312.
http://dx.doi.org/10.1016/S1359-6462(03)00022-8
[11] K. Hagihara, T. Nakano, Y. Umakoshi
Plastic deformation behaviour in Ni3Ti single crystals with D024 structure
Acta Materialia, 51 (2003) pp.2623-2637.
http://dx.doi.org/10.1016/S1359-6454(03)00060-0
[10] K. Hagihara, T. Nakano, Y. Umakoshi
Plastic deformation behavior of oriented Ni3Sn crystals with D019 structure
Scripta Materialia, 48 (2003) pp.577-581.
http://dx.doi.org/10.1016/S1359-6462(02)00472-4
[9] K. Hagihara, T. Nakano, Y. Umakoshi
Effect of Rh and V addition on plastic deformation behaviour in Ni3Nb single crystals with D0a structure
Materials Transactions, 43 (2002) pp.2267-2274.
http://doi.org/10.2320/matertrans.43.2267
[8] K. Hagihara, T. Nakano, Y. Umakoshi
Microstructure and compressive flow stress of directionally solidified ternary Ni3(Al, Nb) and quaternary Ni3(Al, Nb, Ti) alloys with duplex phase
Science and Technology of Advanced Materials, 3 (2002) pp.193-199.
http://dx.doi.org/10.1016/S1468-6996(02)00008-6
[7] K. Hagihara, T. Nakano, Y. Umakoshi
Plastic deformation behavior by slip on (001)[100] in Ni3Nb single crystals with D0a structure
Materials Transactions, 42 (2001) pp.1998-2002.
http://dx.doi.org/10.2320/matertrans.42.1998
[6] K. Hagihara, T. Nakano, Y. Umakoshi
Cyclic deformation behavior of Ni3Nb single crystals deforming by slip on (010)[100]
Intermetallics, 9 (2001) pp.239-244.
http://dx.doi.org/10.1016/S0966-9795(00)00124-2
[5] Y. Umakoshi, K. Hagihara, T. Nakano
Operative slip systems and anomalous strengthening in Ni3Nb single crystals with the D0a structure
Intermetallics, 9 (2001) pp. 955-961.
http://dx.doi.org/10.1016/S0966-9795(01)00096-6
[4] K. Hagihara, T. Nakano, Y. Umakoshi
Plastic deformation behaviour and operative slip systems in Ni3Nb single crystals
Acta Materialia, 48 (2000) pp.1469-1480.
http://dx.doi.org/10.1016/S1359-6454(99)00447-4
[3] Y. Umakoshi, T. Nakano, K. Kishimoto, D. Furuta, K. Hagihara, M. Azuma
Strength and deformation mechanism of C40-based single crystal and polycrystalline silicides
Materials Science and Engineering A, A261 (1999) pp.113-121.
http://dx.doi.org/10.1016/S0921-5093(98)01056-9
[2] K. Hagihara, T. Nakano, Y. Umakoshi
Mechanical properties of C40-based ternary Mo(Si,Al)2 and quaternary (Mo,Zr)(Si,Al)2 silicides
Scripta Materialia, 38 (1998) pp. 471-476.
http://dx.doi.org/10.1016/S1359-6462(97)00432-6
[1] T. Nakano, K. Hagihara, T. Seno, N. Sumida, M. Yamamoto, Y. Umakoshi
Stress anomaly in Al-rich TiAl single crystals deformed by the motion of 1/2<110] ordinary dislocations
Philosophical Magazine Letters, 78 (1998) pp.385-391.
http://dx.doi.org/10.1080/095008398177788

査読付国際会議録

[17] K. HagiharaT. Okamoto,  H. Izuno, M. Yamasaki,  M. Matsushita, T. Nakano, Y. Kawamura
Plastic deformation behavior of the Mg-based LPSO phases with various crystal structures
Proceedings of PRICM9, (2016) pp.27-31.
[16] Y. Koizumi, T. Yamazaki, A. Chiba, K. Hagihara, T. Nakano, K. Yuge, K. Kishida, H. Inui
Phase-field simulation of lamellar structure formation in MoSi2/NbSi2 duplex silicide
Proceedings of Mater. Res. Soc. Symp., 1516 (2013) pp.309-315.
http://dx.doi.org/10.1557/opl.2013.360
[15] T. Yamazaki, Y. Koizumi, A. Chiba, K. Hagihara, T. Nakano, K. Yuge, K. Kishida, H. Inui
Phase-field study on the segregation mechanism of additive elements in NbSi2/MoSi2 duplex silicide
Proceedings of Mater. Res. Soc. Symp., 1516 (2013) pp. 145-150.
http://dx.doi.org/10.1557/opl.2013.391
[14] A. Inoue, K. Kishida, H. Inui, K. Hagihara
Compression of micro-pillars of a long period stacking ordered phase in the Mg-Zn-Y system
Proceedings of Mater. Res. Soc. Symp., 1516 (2013) pp.151-156.
http://dx.doi.org/10.1557/opl.2012.1749
[13] K. Hagihara, Y. Fukusumi, M. Yamasaki, R. Matsumoto, M. Honnami, H. Izuno, T. Nakano, Y. Kawamura
Deformation behavior of LPSO phase and Zn accompanied by kink band formation
Proc. of PRICM8, (2013) pp. 973-978.
http://dx.doi.org/10.1002/9781118792148.ch119
[12] K. Hagihara, T. Nakano, M. Niinomi
Controlling factors on the fatigue behaviour of Ti-Nb-Ta-Zr alloys single crystals
Proc. of PFAM18 (Processing and Fabrication of Advanced Materials), (2009) pp.1023-1030.
[11] K. Hagihara, N. Yokotani, A. Kinoshita, Y. Sugino, M. Yamasaki, Y. Kawamura, Y. Umakoshi
Relation between the microstructure and the plastic deformation behavior in Mg12YZn with the LPSO structure
Magnesium Technology, (2009) pp. 477-482.
ISBN: 978-1-118-02936-7
[10] K. Hagihara, N. Yokotani, A. Kinoshita, Y. Sugino, H. Yamamoto, M. Yamasaki, Y. Kawamura, Y. Umakoshi 
Role of the microstructure on the deformation behavior in Mg12ZnY with a long-period stacking ordered structure
Proceedings of Mater. Res. Soc. Symp., 1128 (2009) pp.U05-53 1-6.
http://dx.doi.org/10.1557/PROC-1128-U05-53
[9] K. Hagihara, T. Nakano, A. Sonoura, K. Watanabe, Y. Umakoshi, M. Niinomi
Effect of bcc-phase stability on cyclic deformation behavior in beta-type Ti-Nb-Ta-Zr alloys single crystals with different Nb content
Proceedings of Ti-2007, (2007) pp.1445-1447.
[8] T. Nakano, K. Hagihara, H. Maki, Y. Umakoshi, M. Niinomi  
Crystal growth and plastic deformation behavior of Ti-29Nb-13Ta-4.6Zr bcc-based single crystal
Proceedings of Ti-2007, (2007) pp.1437-1439.
[7] K. Hagihara, M. Mori, Y. Umakoshi
Plastic deformation behavior of Ni3V crystals with D022 structure
Proceedings of Mater. Res. Soc. Symp., 980 (2007) pp.523-527.
http://dx.doi.org/10.1557/PROC-980-0980-II05-20
[6] T. Nakano, T. Tachibana, K. Hagihara, Y. Umakoshi, T. Ide, M. Tane, H. Nakajima
Fabrication and plastic deformation behavior of lamellar Ti-rich TiAl crystals with lotus-type aligned pores
Proceedings of MetFoam, (2007) pp. 213-216.
[5] T. Nakano, K. Hagihara, Y. Umakoshi 
Effect of C11b-Stabilized element on deformation mode in (Nb1-xMox)Si2 (X=0-0.85) single crystals
Proceedings of Mater. Res. Soc. Symp., 980 (2007) pp.297-302.
http://dx.doi.org/10.1557/PROC-980-0980-II06-02
[4] K. Hagihara, T. Tanaka, T. Nakano, Y. Umakoshi 
Crystal structure, phase stability and plastic deformation behavior of Ti-rich Ni3(Ti, Nb) single crystals with various long-period ordered structures 
Proceedings of Mater. Res. Soc. Symp., 842 (2005) pp.S.5.26.1-6.
http://dx.doi.org/10.1557/PROC-842-S5.26 
[3] K. Hagihara, T. Nakano, Y. Umakoshi 
Plastic deformation behavior of Ni3X(X=Nb, Ti, Sn) type HCP-based intermetallics with the geometrically close-packed structure
Proceedings of Mater. Res. Soc. Symp., 753 (2003) pp.357-362.
http://dx.doi.org/10.1557/PROC-753-BB5.30
[2] K. Hagihara, T. Nakano, Y. Umakoshi
Deformation twins in Ni3Nb single crystals with D0a structure
Proceedings of Mater. Res. Soc. Symp., 646 (2001) pp. N5.23.1- N5.23.6.
http://dx.doi.org/10.1557/PROC-646-N5.23.1 
[1] K. Hagihara, T. Nakano, Y. Umakoshi
Plastic deformation of Ni3Nb single crystals
Proceedings of Mater. Res. Soc. Symp., 552 (1999) pp.KK10.7.1-KK10.7.6.
http://dx.doi.org/10.1557/PROC-552-KK10.7.1

総説・解説

[33] 萩原幸司,中野貴由 
1400℃でも使用可能な超高温耐熱材料を開発 
Ceramics Japan 52 (2017) p.724.
http://www.ceramic.or.jp/ihensyub/topics/topics2017.10.pdf
[32] 萩原幸司
「高機能性構造材料」としてのマグネシウム合金開発
軽金属,67 (2017) pp.293-300.
http://doi.org/10.2464/jilm.67.293
[31] 中野貴由,石本卓也,萩原幸司
粉末積層造形法による形状と組織制御による異方性付与
粉体および粉末冶金,64 (2017) pp.259-264.
http://doi.org/10.2497/jjspm.64.259
[30] 萩原幸司,眞山剛,山崎倫昭,大橋鉄也,河村能人,中野貴由
六方晶系材料における変形帯形成に関する,実験,計算両観点からの考察
日本機械学会 M&M2016カンファレンス 講演論文集, (2016), OS-0111.
http://doi.org/10.1299/jsmemm.2016.OS01-11
[29] 萩原幸司,森川龍哉,東田賢二
シンクロ型LPSO構造の力学的性質とキンク変形挙動
金属,86 (2016) pp.472-479.
ISSN 0368-6337
[28] 荒木秀樹,中野貴由,石本卓也,萩原幸司,井出拓哉,中本将嗣,玉岡秀房
イノベーションスタイルの構築に向けた取り組みについて
日本金属学会誌まてりあ, 54 (2015) pp.519-521.
http://doi.org/10.2320/materia.54.519
[27] 中野貴由,石本卓也,萩原幸司,井出拓哉,中本将嗣,蘇亜拉図,孫世海,荒木秀樹,玉岡秀房
異方性カスタム材質・形状制御について
日本金属学会誌まてりあ, 54 (2015) pp.502-504.
http://doi.org/10.2320/materia.54.502
[26] 萩原幸司,東田賢二
シンクロ型LPSO構造相の塑性変形挙動
日本金属学会誌まてりあ54 (2015) pp.60-64.
http://doi.org/10.2320/materia.54.60
[25] 萩原幸司
単結晶による生体用β型チタン合金の交番変形特性解明
チタン, 62 (2014) p.266.
[24] 萩原幸司, 岡本拓也, 伊津野仁史,本浪雅史, 山崎倫昭, 中野貴由, 河村能人
強化相としてのLPSO相が示す塑性異方性
第58回 日本学術会議材料工学連合講演会 講演論文集, (2014) pp.325-326.
[23] 本浪雅史,萩原幸司,伊津野仁史,多根正和,山崎倫昭,眞山剛,中野貴由,河村能人
六方晶系材料にて観察される変形帯の特徴
第58回 日本学術会議材料工学連合講演会 講演論文集, (2014) p.333.
[22] 萩原幸司
高機能構造材料開発への取り組み
日本金属学会誌まてりあ53 (2014) pp.348-354.
http://doi.org/10.2320/materia.53.348
[21] 萩原幸司,本浪雅史,山崎倫昭,岡本拓也,伊津野仁史,多根正和,中野貴由,河村能人
LPSO相の塑性変形にて形成する変形帯の特徴
日本機械学会 M&M2014カンファレンス 講演論文集, (2014), OS-0101.
http://doi.org/10.1299/jsmemm.2014._OS0101-1_
[20] 萩原幸司
シンクロ型LPSO相におけるキンク変形帯の結晶学的特徴
日本機械学会 2013年度年次大会 講演論文集, (2013), W012001 1-3.
http://doi.org/10.1299/jsmemecj.2013._W012001-1
[19] 萩原幸司,本浪雅史,伊津野仁史,中野貴由,山崎倫昭,河村能人
LPSO相,HCP結晶におけるキンク変形の実験的考察
日本機械学会 M&M2013カンファレンス 講演論文集, (2013), OS-0413.
http://doi.org/10.1299/jsmemm.2013._OS0413-1_
[18]  山崎倫昭,萩原幸司眞山剛,河村能人
Mg基LPSO相のキング変形帯の電子線後方散乱回折法による観察
日本機械学会 M&M2013カンファレンス 講演論文集, (2013), OS-0415.
http://doi.org/10.1299/jsmemm.2013._OS0415-1_
[17] 眞山 剛, 大橋鉄也, 只野裕一, 萩原幸司
単軸圧縮負荷を受けるHCP単結晶におけるキング帯形成過程の結晶塑性解析
日本機械学会 M&M2013カンファレンス 講演論文集, (2013), OS-0417.
http://doi.org/10.1299/jsmemm.2013._OS0417-1_
[16] 萩原幸司,中野貴由
1400℃に耐える合金
Ceramics Japan  48 (2013) p.555.
www.ceramic.or.jp/ihensyub/topics/topics2013.7.pdf
[15] 萩原幸司
シンクロ型LPSO相の塑性変形挙動
日本金属学会セミナーテキスト 「シンクロ型LPSO構造の材料科学
-次世代軽量構造材料へのイノベーション-」
,(2013),pp.19-22.
[14] 萩原幸司, 山崎倫昭, 中野貴由, 河村能人
Mg基シンクロ型LPSO相の塑性変形機構、Mg合金強化に及ぼす寄与
第57回 日本学術会議材料工学連合講演会 講演論文集, (2013) pp.199-200.
[13] 眞山 剛, 大橋鉄也, 只野裕一, 萩原幸司
単一すべり面の支配的な活動に伴う粒内方位差発展に関する結晶塑性解析
日本機械学会2013年度計算力学講演会 講演論文集 (2013).
http://doi.org/10.1299/jsmecmd.2013.26._1401-1_
[12] 萩原幸司
シンクロ型LPSO相の塑性変形機構,Mg合金強化機構
日本機械学会2012年度年次大会 講演概要集,(2012), W012002 pp.1-4.
http://doi.org/10.1299/jsmemecj.2012._W012002-1
[11] 萩原幸司,福住嘉浩,中野貴由,山崎倫昭,河村能人
HCP 金属,シンクロ型LPSO相におけるキンク変形
日本機械学会M&M2012カンファレンス 講演概要集, (2012), OS-0306.
http://doi.org/10.1299/jsmemm.2012._OS0306-1_
[10] 波多聰,廣澤渉一,村上恭和,井誠一郎,萩原幸司,中川惠友,池田賢一,松田光弘,宮野公樹,塗溶
若手研究者からみた研究教育のグローバル化とこれからの日本の材料科学 
日本金属学会誌まてりあ51 (2012) pp.453-454.
http://doi.org/10.2320/materia.51.453
[9] 武部博倫, 中川惠友, 木津太郎, 小川道治, 藤原航三, 出村雅彦, 井 誠一郎, 萩原幸司, 村上 恭和
ナノ構造の形成プロセスと特異な性質
日本金属学会誌まてりあ49 (2010) pp.303-304.
http://doi.org/10.2320/materia.49.303
[8] 山崎 倫昭, 萩原幸司, 馬越佑吉, 森川 龍哉, 東田 賢二, 河村 能人
 Mg合金におけるマルチモーダル組織形成と機械的特性改善
日本機械学会M&M2009材料力学カンファレンス 講演論文集, (2009).
http://doi.org/10.1299/jsmemm.2009.579
[7] 河村 能人, 川崎辰朗, 山崎倫昭, 萩原幸司, 眞山 剛, 東田賢二
LPSO型マグネシウム合金における機械的強度への複合化モデルの適用
日本機械学会M&M2009材料力学カンファレンス 講演論文集, (2009).
http://doi.org/10.1299/jsmemm.2009.570
[6] 萩原幸司,木下昭人,杉野裕也,山崎倫昭,河村能人,馬越佑吉
Mg12ZnY長周期相の塑性変形機構,Mg合金強化機構
日本機械学会M&M2009材料力学カンファレンス 講演論文集, (2009) pp.732-733.
http://doi.org/10.1299/jsmemm.2009.732
[5] 萩原幸司
長周期積層構造相の力学特性,塑性変形挙動
日本金属学会分科会シンポジウムセミナーテキスト
「長周期積層構造型マグネシウム合金の現状と今後の課題」
,
(2008) pp.29-32.
[4] 萩原幸司
Ni3X型金属間化合物の結晶構造と塑性変形挙動
日本金属学会誌まてりあ, 45 (2006) pp.813-816.
http://doi.org/10.2320/materia.45.813
[3] 萩原幸司,田中哲憲,中野貴由,馬越佑吉
GCP構造を有するD024型Ni3Ti化合物の転位構造と異常強化挙動
日本金属学会誌まてりあ,44 (2005) p.997.
http://doi.org/10.2320/materia.44.997
[2] 萩原幸司,田中哲憲,中野貴由,馬越佑吉
Ni基GCP化合物の積層構造と相安定性
日本金属学会誌まてりあ, 43 (2004) p.993.
http://doi.org/10.2320/materia.43.993
[1] 萩原幸司,中野貴由,馬越佑吉
D0a型Ni3Nb単結晶の変形微細組織
日本金属学会誌まてりあ,39 (2000) p.996.
http://doi.org/10.2320/materia.39.996

著書

[4] 萩原幸司 (分担執筆)
バイオマテリアル研究の最前線
4-2-1. 新たな(Mg,Ca)基生分解性金属材料の開発, pp.111-112
日本金属学会 (2014).
[3] 萩原幸司,中野貴由 (分担執筆)
バイオマテリアル研究の最前線
2-3-3. 薬事認可されたβ型Ti-15Mo-5Zr-3Al合金単結晶の塑性挙動の解明, pp.35-36
日本金属学会 (2014).
[2] 萩原幸司 (分担執筆)
未来型人工関節を目指して~その歴史から将来展望まで~
5-1-4. 生分解性医療用金属材料, pp.176-180
日本医学館 (2013).
[1]

萩原幸司 (分担執筆)
電子顕微鏡の実践と応用写真集
D0a型Ni3Nb単結晶中の変形双晶, p.159
日本金属学会・日本鉄鋼協会 (2002).

特許

[2] 中野貴由,萩原幸司,佐々木啓太
インプラント部材用Co-Cr系合金単結晶とその製造方法およびインプラント部材
特許第5561690号
[1] 萩原幸司,中野貴由,馬越佑吉
Ni基合金及び当該Ni基合金の製造方法
特許第3726141号

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