Ultrasonic fatigue properties of an age-hardened Al alloy 6061-T6

Norio Kawagoishi, Qiang Chen, Nu Yan, Qingyuan Wang, Masahiro Goto

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

In order to investigate the influence of loading frequency on the fatigue properties of Al alloy, ultrasonic fatigue tests were carried out for an age-hardened Al alloy, 6061-T6. The results were compared with those of rotating bending fatigue in view points of initiation and propagation behavior of a crack and fracture mechanism. Fatigue life was longer in ultrasonic fatigue than in rotating bending fatigue, which was mainly caused by the suppression of crack initiation. In ultrasonic fatigue, many fatigue voids and cleavage cracks were observed on the fracture surface in addition to the shear mode cracks, striations and dimples, which were typical fracture modes in rotating bending.

本文言語英語
ページ(範囲)1139-1145
ページ数7
ジャーナルNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
70
8
DOI
出版ステータス出版済み - 8 2004
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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