Affiliation: | aDepartment of Metallurgy, Graduate School of Engineering, Tohoku University, 6-6-02 Aramaki, Aoba, Aoba-ku, Sendai 980-8579, Japan;bMaterials Research Group, Structure and Materials Department, National Maritime Research Institute, 6-38-1 Shinkawa, Mitaka, Tokyo 181-0004, Japan;cDivision of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan |