Acta Metall Sin  2005, Vol. 41 Issue (12): 1272-1276     DOI:

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SEM IN SITU OBSERVATIONS TO THE EFFECTS OF INCLUSIONS ON INITIATION AND PROPAGATION OF THE LOW CYCLIC FATIGUE CRACK IN SUPER STRENGTH STEEL

WANG Xishu; LIANG Feng; ZENG Yanping; XIE Xishan

Department of Engineering Mechanics; Tsinghua University; Beijing 100084

WANG Xishu; LIANG Feng; ZENG Yanping; XIE Xishan. SEM IN SITU OBSERVATIONS TO THE EFFECTS OF INCLUSIONS ON INITIATION AND PROPAGATION OF THE LOW CYCLIC FATIGUE CRACK IN SUPER STRENGTH STEEL. Acta Metall Sin, 2005, 41(12): 1272-1276 .

Abstract References Related Articles Recommended Metrics Download:  PDF(516KB)  Export:  BibTeX | EndNote (RIS)       Abstract  SEM in situ observations for the effects of inclusions on the fatigue crack initiation and propagation behaviors of super strength steel indicate that the inclusion size and shape affect not only on the fatigue crack initiation location but also on the crack growth behavior. At the same time, the effects of inclusions on the fatigue crack initiation are discussed by finite element method (FEM) analysis. The critical size of inclusion in low cyclic fatigue crack propagation is proposed and the influence of fatigue crack growth rate is estimated. Key words:  super strength steel      inclusion      fatigue crack initiation and propagation       Received:  28 March 2005      ZTFLH:  TG111.8     TB302.3     O346.1   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors WANG Xishu LIANG Feng ZENG Yanping XIE Xishan URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2005/V41/I12/1272 [1] Zhou S, Murakami Y, Beretta S, Fukushima Y. Mater Sci Technol, 2002; 18: 1535 [2] Pan T, Yang Z G, Bai B Z, Fang H S. Acta Metall Sin, 2003; 39: 1037 (潘涛,杨志刚,白秉哲,方鸿生．金属学报,2003;39:1037) [3] Goto H, Miyazawa K, Tanaka T. ISIJ Int, 1995; 5: 286 [4] Shih T Y, Araki T. Trans Irons Steel Inst Jpn, 1973; 13:11 [5] Wang X S, Li Y Q. Acta Mech Solid Sin, 2003; 16: 327 [6] Zhang J M, Zhang J F, Yang Z G, Li S X, Hui W J, Weng Y Q, Acta Metall Sin, 2004; 40: 846 (张继明,张建锋,杨振国,李守新,惠卫军,翁宇庆．金属学 报,2004;40:846) [7] Yang Z G, Zhang J M, Li S X, Chu Z M, Hui W J, Weng Y Q. 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