1. National Engineering Research Center of Advanced Steel Technology, Central Iron and Steel Research Institute,Beijing 100081, China 2. Faculty of Materials and Metallurgical Engineering, Northeastern University,Shenyang 110819, Liaoning, China
Influence of Hydrogen on GBF in Very High Cycle Fatigue of High Strength Steel
1. National Engineering Research Center of Advanced Steel Technology, Central Iron and Steel Research Institute,Beijing 100081, China 2. Faculty of Materials and Metallurgical Engineering, Northeastern University,Shenyang 110819, Liaoning, China
ժҪ 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 AGBFAINC was obvious, and the expression between fatigue life and AGBFAINC with different hydrogen contents can also be obtained. In addition, based on the research of hydrogen diffusion and GBF, it was explained why the GBF cannot form below 106 cycles. At last, the estimated critical fatigue life of GBF formation can be expressed accurately.
Abstract��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 AGBFAINC was obvious, and the expression between fatigue life and AGBFAINC with different hydrogen contents can also be obtained. In addition, based on the research of hydrogen diffusion and GBF, it was explained why the GBF cannot form below 106 cycles. At last, the estimated critical fatigue life of GBF formation can be expressed accurately.
ZHOU Chao,,ZHANG Yong-jian,HUI Wei-jun,WANG Lei. Influence of Hydrogen on GBF in Very High Cycle Fatigue of High Strength Steel[J]. �й������ڿ���, 2013, 20(12): 92-97.
ZHOU Chao,,ZHANG Yong-jian,HUI Wei-jun,WANG Lei. Influence of Hydrogen on GBF in Very High Cycle Fatigue of High Strength Steel. Chinese Journal of Iron and Steel, 2013, 20(12): 92-97.
2013, Vol. 20 
