Effect of mean stress on fatigue strength of non-combustible magnesium alloy

K. Morishige, Hiroshi Noguchi

研究成果: ジャーナルへの寄稿会議記事査読

抄録

Effect of mean stress on fatigue strength at N=107 of non-combustible magnesium alloy AMX602B(X=Ca) was investigated. Rotating bending fatigue test and tension-compression fatigue test were carried out on specimens with a small hole or crack. It was clarified that the fatigue strength at N=107 of the specimen with the small hole was about 30-150% higher than that of the specimen with the small crack within the range of σm=0∼100MPa. This is the reason why the fatigue strength at N=107 of the specimen with the small hole can be not threshold condition for crack propagation but crack initiation. The fatigue strength at N=107 of the specimens with the small hole decreased within the range of σm= 100∼195MPa due to a static small crack initiating from the small hole at first loading. The effect of mean stress on fatigue strength at N=107 both oh the specimens with the small hole and crack could be estimated using modified Goodman diagram.

本文言語英語
ページ(範囲)170-173
ページ数4
ジャーナルKey Engineering Materials
353-358
PART 1
出版ステータス出版済み - 11月 19 2007
イベントAsian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, 中国
継続期間: 11月 22 200611月 25 2006

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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