Acoustic emission signature of fatigue cracks at titanium alloy welded joints

被引：0
|
作者：
Yue, Ya-Lin [1 ]
Wei, Peng-Yu [2 ]
Li, Sheng-Hua [1 ]
Zhang, Wei [1 ]
Zhang, Jin-Nian [1 ]
Yin, Qiang [1 ]
机构：
[1] China Ship Scientific Research Center, Wuxi 214082, China
[2] School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
来源：
Chuan Bo Li Xue/Journal of Ship Mechanics | 2008年 / 12卷 / 03期
关键词：
Fatigue crack propagation - Life cycle - Welds - Acoustic emission testing - Welding - Fatigue damage;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Titanium alloy is extensively used in industry but the welded joints of it can easily create cracks. In this paper, the acoustic emission (AE) technique is applied to monitor the tension and fatigue damage of the titanium alloy welded joints with different thickness. In the experimentation, the number, amplitude, degree of danger and distribution characteristics of acoustic emission incidents at titanium alloy weld joints were recorded and analyzed. The stage theory concerning the fatigue damage acoustic emission at the titanium alloy welded joints was proposed, providing a theoretical basis for the life-cycle acoustic emission monitoring and evaluation of the service safety of titanium alloy structure.
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页码：429 / 439
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