Correlations between very high cycle fatigue properties and inclusions of GCr15 bearing steel

被引：0

作者：

Li Yongde ^{[1
]}

Yang Zhenguo ^{[1
]}

Li Shouxin ^{[1
]}

Liu Yangbo ^{[1
]}

Chen Shuming ^{[1
]}

机构：

[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

ACTA METALLURGICA SINICA | 2008年 / 44卷 / 08期

关键词：

GCr15 hearing steel; very high cycle fatigue; electroslag remelting; granular-bright facet(GBF); critical inclusion size;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

It is demonstrated that electroslag remelting (ER) can control the inclusion size and its dispersibility better through comparing the very high cycle fatigue (VHCF) properties of two kinds of GCr15 bearing steels prepared by vacuum melting (VM) and ER. Therefore, the specimens prepared by ER, exhibit a better fatigue property. Experimental results and theoretical analysis demonstrate that the stress intensity factor range at the granular-bright facet (GBF) boundary, Delta K-GBF, keeps a constant if the steels are with an identical strength, but it will decrease with the increase of yield strength.

引用

页码：968 / 972

页数：5

共 16 条

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