クリープに伴う9Crフェライト系耐熱鋼の組織自由エネルギー変化
英字タイトル:
Change in the system free energy of 9Cr heat resistant ferritic steels with creep time
著者:
杉山 雄一 Yuichi SUGIYAMA 齋藤 良裕 Yoshihiro SAITO 村田 純教 Yoshinori MURATA 長谷川 泰士 Yasushi HASEGAWA
発刊日:
公開日:
creepferrtic steelsmicrostructuresystem free energyThermo-Calc
Change in the system free energy of 9Cr heat resistant ferritic steels with creep time
著者:
杉山 雄一 Yuichi SUGIYAMA 齋藤 良裕 Yoshihiro SAITO 村田 純教 Yoshinori MURATA 長谷川 泰士 Yasushi HASEGAWA
発刊日:
公開日:
カテゴリ: 第7回
キーワードタグ:creepferrtic steelsmicrostructuresystem free energyThermo-Calc
概要
Microstructural state of metallic materials can be expressed by the system free energy, and the estimation of the system free energy is useful for the damage analysis of the materials. In this study, change in the system free energy of 9Cr heat resistant ferritic steels is estimated with cre ep time on the basis of Thermo-Calc calculation as well as a series of experiments such as X ray diffraction analysis, chemical analysis using ext racted residues, etc., and the change with creep time is expressed quantitatively by introducing the relaxation time into the system free energy.
