FATIGUE STRENGTHS OF THE 54SiCr6 STEEL UNDER DIFFERENT CYCLIC LOADING CONDITIONS

IMR OpenIR

	FATIGUE STRENGTHS OF THE 54SiCr6 STEEL UNDER DIFFERENT CYCLIC LOADING CONDITIONS
	Chen Shuming; Li Yongde; Liu Yangbo; Yang Zhenguo; Li Shouxin; Zhang Zhefeng
通讯作者	Chen Shuming(smchen@imr.ac.cn)
	2009-04-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	45 期号:4 页码:428-433
摘要	Since ultrasonic fatigue test has been used to study the very high cycle fatigue (10(7)-10(9) cyc), the difference between ultrasonic and conventional fatigue test methods should be evaluated in order to ensure the validity of ultrasonic fatigue result. By comparing some results of other researchers, it is found that the frequency effect is negligible, and the loading condition is the main reason for the difference. A comparison of the fatigue strengths of the 54SiCr6 high strength spring steel under three kinds of cyclic loading conditions, rotating bending (RB), tension compression (TC) and ultrasonic (UL), was reported. The results reveal that the three kinds of fatigue specimens display different fracture features, and the fatigue strength of RB is the highest, TC is the lowest, and UL is somewhere in between. The difference in the fatigue strengths is mainly attributed to the distinctions of stress gradient and the size of specimens. By taking highly stressed cross-section area (HSCA) into consideration, a relationship of the fatigue strength and loading condition was proposed, and the two constants sigma(lim,0) and alpha(Xi A) in the equation of HSCA are mainly dependent on material strength and inclusion size, respectively. A relationship of fatigue strengths between RB and TC is also discussed specifically.
关键词	high strength spring steel cyclic loading fatigue strength highly stressed cross-section area (HSCA)
资助者	National Basic Research Program of China
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[G2004CB619100]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000265430300009
出版者	SCIENCE PRESS
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/98405
专题	中国科学院金属研究所
通讯作者	Chen Shuming
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen Shuming,Li Yongde,Liu Yangbo,et al. FATIGUE STRENGTHS OF THE 54SiCr6 STEEL UNDER DIFFERENT CYCLIC LOADING CONDITIONS[J]. ACTA METALLURGICA SINICA,2009,45(4):428-433.
APA	Chen Shuming,Li Yongde,Liu Yangbo,Yang Zhenguo,Li Shouxin,&Zhang Zhefeng.(2009).FATIGUE STRENGTHS OF THE 54SiCr6 STEEL UNDER DIFFERENT CYCLIC LOADING CONDITIONS.ACTA METALLURGICA SINICA,45(4),428-433.
MLA	Chen Shuming,et al."FATIGUE STRENGTHS OF THE 54SiCr6 STEEL UNDER DIFFERENT CYCLIC LOADING CONDITIONS".ACTA METALLURGICA SINICA 45.4(2009):428-433.