Nanoindentation-induced deformation behavior in the vicinity of single grain boundary of interstitial-free steel

Takahito Ohmura, Kaneaki Tsuzaki, Fuxing Yin

研究成果: Contribution to journalArticle査読

66 被引用数 (Scopus)

抄録

Nanoindentation measurements are made on an interstitial-free steel to reveal the effect of single grain boundary on deformation behavior. Three different sites, "on grain boundary", "near grain boundary" and "grain interior", were probed to investigate the pop-in behavior on the initial loading curve and nanohardness. The typical pop-in load at the "grain interior" gives a maximum shear stress beneath the indenter as an order of ideal strength. The pop-in load at the "on grain boundary" is significantly smaller than that at the other sites, indicating that the grain boundary acts as an effective dislocation source with a lower applied shear stress. The nanohardness in the "grain interior" is about 20% lower than that at the other sites, suggesting that a single grain boundary has significant resistance to indentation-induced deformation.

本文言語英語
ページ(範囲)2026-2029
ページ数4
ジャーナルMaterials Transactions
46
9
DOI
出版ステータス出版済み - 9 2005
外部発表はい

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

フィンガープリント

「Nanoindentation-induced deformation behavior in the vicinity of single grain boundary of interstitial-free steel」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