Microstructural damage evolution and arrest in binary Fe–high-Mn alloys with different deformation temperatures

Motomichi Koyama, Takahiro Kaneko, Takahiro Sawaguchi, Kaneaki Tsuzaki

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We investigated the damage evolution behaviors of binary Fe–28–40Mn alloys (mass%) from 93 to 393 K by tensile testing. The underlying mechanisms of the microstructure-dependent damage evolution behavior were uncovered by damage quantification coupled with in situ strain mapping and post-mortem microstructure characterization. The damage growth behaviors could be classified into three types. In type I, the Fe–28Mn alloy at 93 K showed premature fracture associated with ductile damage initiation and subsequent quasi-cleavage damage growth associated with the ε -martensitic transformation. In type II, the Fe–28Mn alloy at 293 K and the Fe–32Mn alloy at 93 K showed delayed damage growth but did not stop growing. In type III, when the stacking fault energy was >19 mJ/m 2, the damage was strongly arrested until final ductile failure.

本文言語English
ページ(範囲)193-206
ページ数14
ジャーナルInternational Journal of Fracture
213
2
DOI
出版ステータスPublished - 2018 10月 1
外部発表はい

ASJC Scopus subject areas

  • 計算力学
  • モデリングとシミュレーション
  • 材料力学

フィンガープリント

「Microstructural damage evolution and arrest in binary Fe–high-Mn alloys with different deformation temperatures」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル