Plastic deformation and fracture behaviors of nitrogen-alloyed austenitic stainless steels

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	Plastic deformation and fracture behaviors of nitrogen-alloyed austenitic stainless steels
	S. T. Wang; K. Yang; Y. Y. Shan; L. F. Li
	2008
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	490 期号:1-2 页码:95-104
摘要	The plastic deformation and fracture behaviors of two nitrogen-alloyed austenitic stainless steels, 316LN and a high nitrogen steel (Fe-Cr-Mn-0.66% N), were investigated by tensile test and Charpy impact test in a temperature range from 77 to 293 K. The Fe-Cr-Mn-N steel showed ductile-to-brittle transition (DBT) behavior, but not for the 316LN steel. X-ray diffraction (XRD) confirmed that the strain-induced martensite occurred in the 316LN steel, but no such transformation in the Fe-Cr-Mn-N steel. Tensile tests showed that the temperature dependences of the yield strength for the two steels were almost the same. The ultimate tensile strength of the Fe-Cr-Mn-N steel displayed less significant temperature dependence than that of the 316LN steel. The strain-hardening exponent increased for the 316LN steel, but decreased for the Fe-Cr-Mn-N steel, with decreasing temperature. Based on the experimental results and the analyses, a modified scheme was proposed to explain the fracture behaviors of austenitic stainless steels. (c) 2008 Elsevier B.V. All rights reserved.
部门归属	[wang, songtao; yang, ke; shan, yiyin] chinese acad sci, inst met res, shenyang 110016, peoples r china. [wang, songtao; li, laifeng] chinese acad sci, tech inst phys & chem, beijing 100080, peoples r china.;yang, k (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china, peoples r china;kyang@imr.ac.cn
关键词	Nitrogen-alloyed Austenitic Steels Ductile-to-brittte Transition Strain-induced Martensite Strain-hardening Behaviors Work-hardening Behavior Cleavage-like Fracture Temperature-dependence Brittle-fracture Cold Deformation Strain-rate Fcc Metals Mechanism Models
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WOS记录号	WOS:000258389200013
引用统计	被引频次：44[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/321006/33148
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. T. Wang,K. Yang,Y. Y. Shan,et al. Plastic deformation and fracture behaviors of nitrogen-alloyed austenitic stainless steels[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,490(1-2):95-104.
APA	S. T. Wang,K. Yang,Y. Y. Shan,&L. F. Li.(2008).Plastic deformation and fracture behaviors of nitrogen-alloyed austenitic stainless steels.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,490(1-2),95-104.
MLA	S. T. Wang,et al."Plastic deformation and fracture behaviors of nitrogen-alloyed austenitic stainless steels".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 490.1-2(2008):95-104.