Comparison of twinning evolution with work hardening ability in twinning-induced plasticity steel under different strain rates

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	Comparison of twinning evolution with work hardening ability in twinning-induced plasticity steel under different strain rates
	H. K.; Zhang Yang, Z. J.; Zhang, Z. F.
	2015
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	622 页码:184-188
摘要	For Fe-22Mn-0.6C (wt%) twinning-induced plasticity (TWIP) steel with grain sizes of 35 and 170 mu m, both the ultimate tensile strength and uniform elongation decrease with increasing the tensile strain rates (from 10(-4) to 10(0) s(-1)). The density of twin boundary (DTB) is presumed to be the major factor influencing mechanical properties. Accordingly, a parameter 2/(t+s) (t and s represent the thickness and spacing of deformation twins), also the inverse of the mean free path for dislocation slip, is proposed to characterize the planar-oriented twinned structure in infinite grain size (D >> t approximate to s). It also evaluates the effect of DTB on the work hardening ability and ductility of the TWIP steel. (C) 2014 Elsevier B.V. All rights reserved.
部门归属	[yang, h. k. ; zhang, z. j. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; zhang, zf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; zhfzhang@imr.ac.cn
关键词	Twinning-induced Plasticity (Twip) Steel Strength Elongation Twin Boundary Strain Rate c Twip Steel Grain-size Dislocation Stress Dependence Behavior Al Microstructure Substructure Temperature
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73999
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. K.,Zhang Yang, Z. J.,Zhang, Z. F.. Comparison of twinning evolution with work hardening ability in twinning-induced plasticity steel under different strain rates[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2015,622:184-188.
APA	H. K.,Zhang Yang, Z. J.,&Zhang, Z. F..(2015).Comparison of twinning evolution with work hardening ability in twinning-induced plasticity steel under different strain rates.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,622,184-188.
MLA	H. K.,et al."Comparison of twinning evolution with work hardening ability in twinning-induced plasticity steel under different strain rates".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 622(2015):184-188.