The influence of hydrogen on very high properties of high strength spring cycle fatigue steel

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	The influence of hydrogen on very high properties of high strength spring cycle fatigue steel
	Y. D. Li; Z. G. Yang; Y. B. Liu; S. X. Li; G. Y. Li; W. J. Hui; Y. Q. Weng
	2008
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	489 期号:1-2 页码:373-379
摘要	The influence of hydrogen on very high cycle fatigue (VHCF) properties of high strength spring steel 50CrV4 was studied in this paper. Three groups of specimens with different hydrogen contents (C-H) were prepared through different heat treatment procedures: quenched and tempered (specimen QT), annealed at 380 degrees C in a vacuum after QT (specimen VA), and treated by high-pressure thermal hydrogen charging (HPTHC) after QT (specimen HPTHC). Increase of hydrogen content (C-H) was definitely detrimental to the fatigue properties, especially for HPTHC specimens the fatigue strength at 10(9) cycles decreased considerably. The fatigue limit expression deduced by Murakami was revised in this paper. Basquin exponent was also discussed and it was found that the absolute value of Basquin exponent increases with hydrogen content increasing. Therefore, we could arrive at a conclusion that hydrogen content in steels is a very important factor influencing the VHCF properties of high strength spring steels. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[li, y. d.; yang, z. g.; liu, y. b.; li, s. x.; li, g. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [hui, w. j.; weng, y. q.] cent iron & steel res inst, beijing 100081, peoples r china.;li, yd (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;ydli@imr.ac.cn shxli@imr.ac.cn
关键词	High Strength Spring Steel Very High Cycle Fatigue Hydrogen Content Inclusion Oda/gbf Regime N-greater-than-10(7) Cycles Subsurface Crack Initiation Inclusion Size Part Ii Mechanism Failure Life Embrittlement Behavior
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WOS记录号	WOS:000258038500045
引用统计	被引频次：31[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/321006/32905
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. D. Li,Z. G. Yang,Y. B. Liu,et al. The influence of hydrogen on very high properties of high strength spring cycle fatigue steel[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,489(1-2):373-379.
APA	Y. D. Li.,Z. G. Yang.,Y. B. Liu.,S. X. Li.,G. Y. Li.,...&Y. Q. Weng.(2008).The influence of hydrogen on very high properties of high strength spring cycle fatigue steel.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,489(1-2),373-379.
MLA	Y. D. Li,et al."The influence of hydrogen on very high properties of high strength spring cycle fatigue steel".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 489.1-2(2008):373-379.