Influence of cyclic stress amplitude on mechanisms of deformation of a high nitrogen austenitic stainless steel

IMR OpenIR

	Influence of cyclic stress amplitude on mechanisms of deformation of a high nitrogen austenitic stainless steel
	Shao, C. W.; Shi, F.; Li, X. W.; Li, XW (reprint author), Northeastern Univ, Sch Mat Sci & Engn, Inst Mat Phys & Chem, Shenyang 110819, Peoples R China.
	2016-06-14
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	667 页码:208-216
摘要	The tension-tension fatigue behavior of Fe-18Cr-18Mn-0.63N high nitrogen austenitic stainless steel was investigated focusing on the effect of the imposed stress amplitude on the deformation and damage characteristics. It was found that the S-N curve of the fatigue life vs. the stress amplitude meets a specific bilinear Basquin relationship. With the increase in stress amplitude, the distinctive damage features on the specimen surface change from slip cracking into intergranular cracking. The internal microstructure is mainly composed of planar single-slip dislocation arrangements at low stress amplitudes. In contrast, at high stress amplitudes, the microstructures primarily comprise planar multiple-slip dislocation structures, deformation twins, twin-like bands together with a few wavy slip dislocation arrangements. Such a variation in deformation micromechanisms with the applied stress amplitude is believed to be the major reason for the occurrence of a specific bilinear Basquin relationship in the S-N curve. (c) 2016 Elsevier B.V. All rights reserved.
部门归属	[shao, c. w. ; shi, f. ; li, x. w.] northeastern univ, sch mat sci & engn, inst mat phys & chem, shenyang 110819, peoples r china ; [li, x. w.] northeastern univ, minist educ, key lab anisotropy & texture mat, shenyang 110819, peoples r china ; [shao, c. w.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	High Nitrogen Austenitic Stainless Steel Tension-tension Fatigue Stress Amplitude Deformation And Damage Microstructure
学科领域	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
资助者	National Natural Science Foundation of China (NSFC) [51231002, 51271054, 51201027, 51571058]
收录类别	sci
语种	英语
WOS记录号	WOS:000378183800022
引用统计	被引频次：27[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/321006/75828
专题	中国科学院金属研究所
通讯作者	Li, XW (reprint author), Northeastern Univ, Sch Mat Sci & Engn, Inst Mat Phys & Chem, Shenyang 110819, Peoples R China.
推荐引用方式 GB/T 7714	Shao, C. W.,Shi, F.,Li, X. W.,et al. Influence of cyclic stress amplitude on mechanisms of deformation of a high nitrogen austenitic stainless steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,667:208-216.
APA	Shao, C. W.,Shi, F.,Li, X. W.,&Li, XW .(2016).Influence of cyclic stress amplitude on mechanisms of deformation of a high nitrogen austenitic stainless steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,667,208-216.
MLA	Shao, C. W.,et al."Influence of cyclic stress amplitude on mechanisms of deformation of a high nitrogen austenitic stainless steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 667(2016):208-216.