About TIO R
About National Res. Inst. Metals, Ibaraki, JPN
About SHIGA C
About National Res. Inst. Metals, Ibaraki, JPN
About KAWAGUCHI Y
About National Res. Inst. Metals, Ibaraki, JPN
About NAKAMURA T
About National Res. Inst. Metals, Ibaraki, JPN
About HIRAOKA K
About National Res. Inst. Metals, Ibaraki, JPN
About HAYASHI T
About National Res. Inst. Metals, Ibaraki, JPN
About TORIZUKA S
About National Res. Inst. Metals, Ibaraki, JPN
About ISIJ International (Iron and Steel Institute of Japan)
About narrow gap welding
About Weld zone
About 超微細粒鋼
About 溶接熱影響部
About 軟化