Quantitative estimation of contribution of pore size and the distance between nearest neighbour pores on high cycle fatigue (HCF) crack initiation in Ti-6Al-4V MIM-sintered materials

Isshin Ando, Kentaro Kudo, Kyosuke Hirayama, Yuji Shigeta, Kazunari Shinagawa, Akihisa Takeuchi, Masayuki Uesugi, Yukiko Ozaki

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

The fatigue damages due to pores of MIM-sintered Ti64 were investigated using the synchrotron X-ray CT imaging. The effect of pores on the fatigue strength limits was analysed independently from that of grain size by introducing the fatigue limit ratio RF. The pores near to the maximum-stress area were identified by elastic FEM. The maximum stress intensity factor KI-max at the edge of the identified pores showed a negative correlation with RF. Moreover, the initial cleavage in the crack was influenced by the mutual interference of both stress fields by the proximity of the identified pore and its adjacent pores.

本文言語英語
論文番号107557
ジャーナルInternational Journal of Fatigue
171
DOI
出版ステータス出版済み - 6月 2023

!!!All Science Journal Classification (ASJC) codes

  • モデリングとシミュレーション
  • 材料科学一般
  • 材料力学
  • 機械工学
  • 産業および生産工学

フィンガープリント

「Quantitative estimation of contribution of pore size and the distance between nearest neighbour pores on high cycle fatigue (HCF) crack initiation in Ti-6Al-4V MIM-sintered materials」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