Influence of Hydrogen on GBF in Very High Cycle Fatigue of High Strength Steel

被引：5
|
作者：
Zhou Chao [1 ,2 ]
Zhang Yong-jian [1 ]
Hui Wei-jun [1 ]
Wang Lei [2 ]
机构：
[1] Cent Iron & Steel Res Inst, Natl Engn Res Ctr Adv Steel Technol, Beijing 100081, Peoples R China
[2] Northeastern Univ, Fac Mat & Met Engn, Shenyang 110819, Liaoning, Peoples R China
来源：
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2013年 / 20卷 / 12期
关键词：
hydrogen; granular bright facet; very high cycle fatigue; SUBSURFACE CRACK INITIATION; CHROMIUM-BEARING STEEL; LONG-LIFE FATIGUE; GIGACYCLE FATIGUE; REGIME; MECHANISM; FAILURE; BEHAVIOR; SIZE;
D O I：
10.1016/S1006-706X(13)60221-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The relationship of hydrogen, GBF (granular bright facet) and very high cycle fatigue properties of high strength spring steels 60Si2CrV with three different hydrogen contents were studied using hydrogen thermal desorption analysis and ultrasonic fatigue test. The results showed that the influence of hydrogen on the relationship between fatigue life and the ratio of GBF to inclusion size [root A(GBF/)root A(INC)] was obvious, and the expression between fatigue life and root A(GBF/)root A(INC) with different hydrogen contents can also be obtained. In addition, based on the research of hydrogen VA1Nc diffusion and GBF, it was explained why the GBF cannot form below 10(6) cycles. At last, the estimated critical fatigue life of GBF formation can be expressed accurately.
引用
收藏
页码：92 / 97
页数：6
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