Dr. Toshiyuki Hirano Leader National Institute for Materials Science Fuel Cell Materials Center Fuel Reforming Materials Group 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan TEL: +81-298-59-2545 FAX: +81-298-59-2501 e-mail: HIRANO.Toshiyuki@nims.go.jp

Education

Osaka University, Japan, B.S. Metallurgy, 1969
Osaka University, Japan, M.S. Metallurgy, 1971
Osaka University., Japan, Ph. D. Materials Science, 1975

Research Collaboration

With Dr. Easo P. George, Metals and Ceramics Division, Oak Ridge National Laboratory, USA to study the grain boundary properties of Ni₃Al.

Selected publications

1. T.Hirano: "Improvement of Room Temperature Ductility of Stoichiometric Ni₃Al by Unidirectional Solidification" Acta metall. mater., 38(1990),2667-2671.
2. T.Hirano: "Tensile Ductility of Stoichiometric Ni₃Al Grown by Unidirectional Solidification" Scripta metall. mater., 25(1991),1747-1750.
3. M. Demura and T. Hirano: "Stress response by the strain-rate change in binary, stoichiometric Ni₃Al single crystal" Phil. Mag. Lett.,75(1997),143-148.
4. E. P. Geroge, M. Imai, and T. Hirano: "Effect of alloy stoichiometry on grain boundary chemistry and fracture behavior of directionally solidified Ni₃Al" Intermetallics, 5(1997),425-432.
5. D. Golberg, M. Demura and T. Hirano: "Compressive flow stress of a binary stoichiometric Ni₃Al single crystal" Scripta mater., 37(1997),1777-1782.
6. D. Golberg, M. Demura and T. Hirano: "Single Crystal Growth and Characterization of Binary Sotichiometric and Al-rich Ni₃Al", J. Cryst. Growth, 186(1998),624-628.
7. D. Golberg, M. Demura and T. Hirano: "Effect of Al-rich off-stoichiometry on the yield stress of Binary Ni₃Al single crystals", Acta Mater., 46(1998),2695-2703.
8. T. Hirano, M. Demura, E. P. George, and O. Umezawa: "Fabrication of large-Grained binary sotichiometric Ni₃Al", Scripta Mater., 40(1999),63-69.
9. T. Hirano, D. Golberg, and M. Demura: "Compliance to Scmidt Law in the Stress Anomaly Regime of Binary Stoichiometric Ni₃Al", Acta mater. 47(1999),3441-3446
10. M. Demura Y. Suga, O. Umezawa, K. Kishida, E. P. George and T. Hirano: "Fabrication of Ni₃Al Thin Foil by Cold Rolling", Intermetallics, 9(2001),157-167.
11. H.Borodians'ka, M.Demura, K.Kishida and T.Hirano: "Fabrication of Thin Foils of Binary Ni-Al gamma/gamma' Two Phase Alloys by Cold Rolling" Intermetallics, 10(2002),255-262.
12. J. Q. Su, M. Demura and T. Hirano: "Grain-boundary Fracture Strength in Ni₃Al Bicrystals" Philo. Mag. A, 82(2002),1541-1557.
13. M.Demura, K.Kishida, T. Hirano and Y.Suga: "Room-temperature Mechanical Properties of Cold-rolled Foils of Binary, Stoichiometric Ni₃Al" Met. Mater. Transactions A, accepted for publication.
14. M.Demura, K.Kishida, Y.Suga, M.Takanashi and T. Hirano: "Fabrication of Very Thin and Wide Ni₃Al Foils by Cold-rolling" Scripta Mater. Transactions A, accepted for publication.

Reviews

1. 平野敏幸："金属間化合物の単結晶育成" まてりあ、36(1997) 717-722.
2. 平野敏幸、出村雅彦、岸田恭輔、菅洋三："Ni₃Al冷間圧延箔の製造と機械的性質" まてりあ、(2002) 283-289.