Study on fatigue property of a new 2.8 GPa grade maraging steel

IMR OpenIR

	Study on fatigue property of a new 2.8 GPa grade maraging steel
	W. Wang; W. Yan; Q. Q. Duan; Y. Y. Shan; Z. F. Zhang; K. Yang
	2010
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	527 期号:13-14 页码:3057-3063
摘要	A new 2.8 GPa grade maraging steel was developed in the present work and the tension-tension fatigue property of the steel was studied after peak-aging treatment. The results showed that the steel could reach an ultimate tensile strength of 2760 MPa, a fracture toughness of 31.6 MPa m(1/2), and a fatigue limit of 1150 MPa at stress ratio of 0.1. It was revealed that the fatigue crack initiation of the steel mainly originated from the surface at high stress level but from the interior inclusions at low stress level. From the observations by transmission electron microscope (TEM) and fatigue crack propagation curves, it was proposed that the cyclic softening occurred, which was induced by the resolution as well as the growth of precipitates, and the poor fatigue crack growth resistance and high fatigue crack propagation rate might be the main reason for the relatively low fatigue limit of the steel. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[duan, qiqiang; zhang, zhefeng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wang, wei] chinese acad sci, grad univ, beijing 10049, peoples r china.;yang, k (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;kyang@imr.ac.cn
关键词	Maraging Steel Fatigue Property S-n Curve Fatigue Crack High-strength Steel Part i Failure Mechanism Hydrogen Behavior Phase
URL	查看原文
WOS记录号	WOS:000276874700002
引用统计	被引频次：58[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/321006/31519
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Wang,W. Yan,Q. Q. Duan,et al. Study on fatigue property of a new 2.8 GPa grade maraging steel[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(13-14):3057-3063.
APA	W. Wang,W. Yan,Q. Q. Duan,Y. Y. Shan,Z. F. Zhang,&K. Yang.(2010).Study on fatigue property of a new 2.8 GPa grade maraging steel.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(13-14),3057-3063.
MLA	W. Wang,et al."Study on fatigue property of a new 2.8 GPa grade maraging steel".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.13-14(2010):3057-3063.