検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

原子・電子及び転位論的手法による粒界特性評価

Atomistic/electronic and discrete dislocation simulations for grain boundary characteristics

都留 智仁   ; 加治 芳行  ; 塚田 隆 ; 渋谷 陽二*

Tsuru, Tomohito; Kaji, Yoshiyuki; Tsukada, Takashi; Shibutani, Yoji*

結晶粒界は材料強度の向上に寄与する一方、粒界における不純物元素の偏析は材料の脆化を引き起こす要因となる。原子力材料における応力腐食割れにおいては、材料・応力・環境及び照射の重畳する状況で生じ顕著な脆化を生じる。本研究では、材料因子と応力因子に着目した粒界特性評価に関して計算モデルを提案し、種々の問題について評価する。

Fundamental properties of grain boundaries (GBs) are investigated via Atomistic/electronic simulations and discrete dislocation models. Grain boundary and dislocation is one of the most important factors in the crystalline materials which contribute significantly to plastic behavior. In this study, we focused on the various kinds of grain boundaries including the coincidence site lattice, small angle, and random GBs, and evaluated the structural characteristics and fundamental properties effectively.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.