Oxide-induced crack closure: an explanation for abnormal time-dependent fatigue crack propagation behavior in INCONEL alloy 783

被引：14
|
作者：
Ma, LZ [1 ]
Chang, KM
Mannan, SK
机构：
[1] Univ Nevada, Harry Reid Ctr Environm Studies, Las Vegas, NV 89154 USA
[2] W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA
[3] Special Met Corp, Huntington, WV 25705 USA
来源：
SCRIPTA MATERIALIA | 2003年 / 48卷 / 05期
关键词：
crack closure; fatigue; oxides; fracture; scanning electron microscopy;
D O I：
10.1016/S1359-6462(02)00476-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
INCONEL(R) (trademark of Special Metals Corporation) alloy 783 was subjected to the fatigue crack growth under sinusoidal and hold-time waveform conditions at 650 degreesC in air. Interestingly, alloy 783 did not display full time-dependent fatigue crack propagation (FCP) with increase in the hold time. The oxide-induced crack closure is thought to be responsible for the abnormal time-dependent FCP behavior. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：583 / 588
页数：6
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