Fatigue crack behavior of welds in Q460NH steel

被引：0
|
作者：
Jia, Kunning [1 ]
机构：
[1] Changchun Inst Technol, Changchun 130012, Jilin, Peoples R China
来源：
MATERIALS PROCESSING TECHNOLOGY | 2011年 / 337卷
关键词：
fatigue crack behavior; weld; fatigue crack growth rate;
D O I：
10.4028/www.scientific.net/AMR.337.674
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fatigue crack growth behavior of weld joint of Q460NH steel is very important for estimating life-time in terms of a crack length in weld joint. In this paper, fatigue crack growth behavior of weld metal (WM), heat affected zone(HAZ) and mother metal(BM) have been researched at room temperature. The variation of fatigue crack growth rate(da/dN) with stress intensity factor range (Delta K) for WM, HAZ and BM is discussed within the Paris region. It is shown that fatigue crack growth rate of WM is the slowest in tree parts.
引用
收藏
页码：674 / 677
页数：4
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