Super-long life fatigue behavior of structural aluminum alloys

Q. Y. Wang, N. Kawagoishi, N. Yan, Q. Chen

研究成果: Contribution to journalConference article査読

4 被引用数 (Scopus)

抄録

The objective of this study is to determine very long life fatigue and near threshold fatigue crack growth behaviors of 7075/T6 and 6061/T6 Al-alloys using piezoelectric accelerated fatigue at 19.5KHz. The experimental results show the fatigue failure can occur beyond 107, even 109 cycles, and endurance limits could not be obtained in the Al-alloys until 109 cycles. Fatigue voids are noticed on fatigue fracture in both alloys. By using scanning electron microscopy (SEM), the crack initiation and propagation behaviors have been examined. Fatigue crack growth rates of small cr acks in the Al-alloys are found to be greater than those of large cracks at the same stress intensity factor range.

本文言語英語
ページ(範囲)1287-1294
ページ数8
ジャーナルKey Engineering Materials
261-263
II
DOI
出版ステータス出版済み - 2004
外部発表はい
イベントAdvances in Fracture and Failure Prevention: Proceedings of the Fifth International Conference on Fracture and Strength of Solids (FEOFS2003): Second International Conference on Physics and Chemistry of Fracture and Failure Prevention (2nd ICPCF) - Sendai, 日本
継続期間: 10 20 200310 22 2003

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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