Indentation behavior of a ZCAP-3 bulk metallic glass: Effects of the fatigue deformation

Fuqian Yang, Hongmei Dang, Gongyao Wang, Yoshihiko Yokoyama, Peter K. Liaw

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The effects of the fatigue deformation on the localized deformation of a ZCAP-3 bulk metallic glass (BMG) were studied using the nanoindentation technique. A localized mechanical hardening was observed in the ZCAP-3 BMG between the shear bands in the fatigue-damaged zone. In contrast to the indentations of the BMG made far away from the fatigue-damaged zone, there was no indentation size effect. Both the reduced contact modulus and the indentation hardness were larger than those corresponding to the indentations of the ZCAP-3 BMG in the undamaged zone. These observations revealed the possible effects of local heating and stress-induced atomic rearrangements (i.e., inelastic deformation) on the reduction of the free volume in the BMG from the propagation of the fatigue crack.

本文言語English
ページ(範囲)2346-2352
ページ数7
ジャーナルJournal of Materials Research
24
7
DOI
出版ステータスPublished - 2009 7

ASJC Scopus subject areas

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

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