Experimental and numerical investigation on ductile-brittle fracture transition in a magnesium alloy

C. Yan, W. Ma, V. Burg, M. W. Chen

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Tensile test on smooth and circumferentially notched specimens, systematic observation of fracture surfaces and large deformation finite element analysis were conducted to understand the deformation and failure behavior of a magnesium alloy (AM60). The plastic deformation is considered to be dominated by twining mediated slip. The tensile properties were not sensitive to the strain rates applied (3.3 × 10-4∼0.1). Corresponding to the same loading level, higher stress triaxiality but lower plastic strain was observed in the specimens with a smaller notch profile radius. Deformation and failure of the magnesium alloy were sensitive to the constraint level and ductile-brittle fracture transition occurred with decreasing the notch profile radius.

本文言語English
ページ(範囲)7702-7707
ページ数6
ジャーナルJournal of Materials Science
42
18
DOI
出版ステータスPublished - 2007 9月
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

フィンガープリント

「Experimental and numerical investigation on ductile-brittle fracture transition in a magnesium alloy」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