| FATIGUE STRENGTHS OF THE 54SiCr6 STEEL UNDER DIFFERENT CYCLIC LOADING CONDITIONS | |
| Chen Shuming; Li Yongde; Liu Yangbo; Yang Zhenguo; Li Shouxin; Zhang Zhefeng | |
| Corresponding Author | Chen Shuming(smchen@imr.ac.cn) |
| 2009-04-11 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 45Issue:4Pages:428-433 |
| Abstract | 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. |
| Keyword | high strength spring steel cyclic loading fatigue strength highly stressed cross-section area (HSCA) |
| Funding Organization | National Basic Research Program of China |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Basic Research Program of China[G2004CB619100] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000265430300009 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/98405 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Chen Shuming |
| Affiliation | Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation 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. |
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