Crack initiation and propagation under fretting fatigue of inconel 600 alloy

被引：24

作者：

Jeung, Han-Kyu ^{[1
]}

Kwon, Jae-Do ^{[2
]}

Lee, Choon Yeol ^{[2
]}

机构：

[1] Yeungnam Univ, Grad Sch Mech Engn, Kyongsan 712749, Gyeongbuk, South Korea

[2] Yeungnam Univ, Dept Mech Engn, Kyongsan 712749, Gyeongbuk, South Korea

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2015年 / 29卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

Inconel; 600; Fretting fatigue; Fatigue crack initiation; Fatigue crack propagation; Steam generator; PREDICTION;

D O I：

10.1007/s12206-015-1124-8

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The purpose of the study is to experimentally investigate the fatigue crack initiation and propagation characteristics of nuclear power plant steam generator tube materials, Inconel 600 alloy, under fretting fatigue conditions. In addition, this study aims to enhance the overall reliability of nuclear power plant equipments by developing fretting fatigue life and integrity evaluation methods. In order to achieve these purposes, a fretting fatigue experiment apparatus is developed and fatigue crack growth experiments are conducted to evaluate the characteristics of Inconel 600 alloy under various stress conditions. Finally, microstructures are observed in accordance with fretting fatigue and contact pressure conditions and fretting fatigue crack initiation mechanism is examined.

引用

页码：5241 / 5244

页数：4

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