Evaluation of grain boundary effect on the strength of Fe-C martensltic steels through nanoindentation technique

T. Ohmura, K. Tsuzaki

研究成果: ジャーナルへの寄稿会議記事査読

7 被引用数 (Scopus)

抄録

Nanoindentation measurements were performed for Fe-C based martensitic steels, and then the strengthening factors such as grain boundary effect were evaluated. Nanohardness of the matrix of the martensite is lower than that expected from macroscopic hardness, indicating that the grain boundary effect is significant for the macroscopic strength of the Fe-C martensite. A remarkable decrease of the grain boundary effect was found at the tempering temperature of 673 K, which is due to a disappearance of film-like carbides on grain boundaries. These results will be discussed in light of the interpretations of grain boundary strengthening.

本文言語英語
ページ(範囲)4113-4116
ページ数4
ジャーナルMaterials Science Forum
475-479
V
DOI
出版ステータス出版済み - 1月 1 2005
イベントPRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, 中国
継続期間: 11月 2 200411月 5 2004

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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