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

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	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
刊名	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
	2010
卷号	527 期号:13-14 页码:3057-3063
关键词	Maraging steel Fatigue property S-N curve Fatigue crack high-strength steel part i failure mechanism hydrogen behavior phase
ISSN号	0921-5093
中文摘要	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.
原文出处	://WOS:000276874700002
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31519]
专题	金属研究所_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.