Prediction of Cold Dwell-Fatigue Crack Growth of Titanium Alloys

被引：2

作者：

Ke Wang ^{[1
]}

Fang Wang ^{[2
]}

WeiCheng Cui ^{[2
]}

ALi Tian ^{[3
]}

机构：

[1] School of Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University

[2] Hadal Science and Technology Research Center (Shanghai Engineering Research Center of Hadal Science and Technology),Shanghai Ocean University

[3] School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology

来源：

Acta Metallurgica Sinica(English Letters) | 2015年 / 28卷 / 05期

关键词：

Titanium alloy; Dwell-fatigue; Fatigue; Crack growth;

D O I：

暂无

中图分类号：

TG146.23 [];

学科分类号：

080502 ;

摘要：

The dwell effect of the material can reduce the fatigue lives of titanium alloys at room temperature. A unified fatigue life prediction method developed by the authors' group is modified in this paper to predict dwell-fatigue crack growth taking into account the effects of dwell time and maximum stress. The modified model can be successfully used to predict the crack growth rate and calculate the fatigue life of different titanium alloys under pure fatigue and dwell-fatigue conditions. It is validated by comparing prediction results with the experimental data of several titanium alloys with different microstructures, dwell time, hydrogen contents, stress ratios and stress levels.

引用

页码：619 / 627

页数：9

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