Fatigue crack propagation study of precipitation hardened steels

Virendra Kumar Verma, He Liu, Shigeru Hamada, Hiroshi Noguchi

研究成果: Contribution to journalConference article査読

抄録

The present study deals with the fatigue crack propagation of two different precipitation hardened steels. The two steels differ in the nature of precipitate they bear. The steel having the soft precipitate with coarse grain and the steel having the hard precipitate with fine grain. Instead of having different grain structure and precipitates the two steels have same tensile strength and hardness value. The conventional studies conclude that if two materials have same tensile strength then fatigue properties of two materials will also exhibit same nature. The FEM analysis results obtained concludes that the fatigue property of both steels are not only different but also shows a vice-versa nature for initially small and large crack. The reason for such a behavior is explored using experimental methods, crack growth is monitored and also analytical techniques (Finite element method) were implemented to reach at a final conclusion.

本文言語英語
ページ(範囲)4470-4474
ページ数5
ジャーナルMaterials Today: Proceedings
46
DOI
出版ステータス出版済み - 2019
イベントInternational Conference on Advances in Materials and Manufacturing Applications, IConAMMA 2019 - Bengaluru, インド
継続期間: 8 29 20198 31 2019

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)

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