MRT letter: In situ observation method for microstructural changes of steel during hot deformation.
We report on the result of an in situ method for observing microstructural changes during hot deformation. The observation of microstructural changes of steel at 1,473 K under tensile strain is demonstrated using the reported method. The development of deformed structures and the formation of a new grain boundary, which subsequently moved with increased strain, were clearly observed. The effectiveness of this method was confirmed by the results of several examples.
Metal Forming Laboratory, Toyota Central R&D Labs., Inc., Aichi-gun, Aichi 480-1192, Japan. yogoyasu@mosk.tytlabs.co.jp
Yasuhiro
Y
Yogo
Hirohisa
H
Takeuchi
Kouji
K
Tanaka
Noritoshi
N
Iwata
Koukichi
K
Nakanishi
Takashi
T
Ishikawa