時効硬化Al合金6061-T6の超音波疲労特性

皮籠石 紀雄, 陳 強, 燕 怒, 王 清遠, 後藤 真宏

研究成果: Contribution to journalArticle査読

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.
寄稿の翻訳タイトルUltrasonic Fatigue Properties of an Age-Hardened Al Alloy 6061-T6
本文言語Japanese
ページ(範囲)1139-1145
ページ数7
ジャーナルNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
70
696
DOI
出版ステータス出版済み - 8 25 2004

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