Transactions of the Japan Society of Mechanical Engineers Series A
Online ISSN : 1884-8338
Print ISSN : 0387-5008
Effect of Oil Environment on Characteristics of Fatigue Crack growth of Age-Hardened Al-Alloy
Hironobu NISITANINorio KAWAGOISHIYoshiro OTSUKatsuro SUENAGAMinoru WAKAHARA
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1987 Volume 53 Issue 486 Pages 211-214

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Abstract
Rotating bending fatigue tests were carried out on specimens with a small blind hole of an age-hardened Al-alloy in air and in oil. Fatigue crack growth rate of an age-hardened Al-alloy 6061-T6 is higher in oil than in air, contrary to the other many metals. Hence, it is suggested that the fatigue crack growth is accelerated in an age-hardened Al-alloy by the lubricating action.
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