Serrated flow induced by twin boundary-slip band interactions in a FeNi-base austenitic alloy

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	Serrated flow induced by twin boundary-slip band interactions in a FeNi-base austenitic alloy
	S. A. Zhao; X. Y. Li; L. J. Rong
	2011
发表期刊	Materials Letters
ISSN	0167-577X
卷号	65 期号:15-16 页码:2388-2390
摘要	Tensile tests on a FeNi-base austenitic alloy were conducted at room temperature (RT) and 400 degrees C, when serrated flow did not and did occur, respectively. Deformation microstructures such as topographies of slip bands (SBs), morphologies of twin boundaries (TBs) and arrangements of dislocations near TBs, as well as concentrations of strain were investigated. It is shown that TBs block SBs and induce remarkable stress accumulations at 400 degrees C. Effect of TB-density on the serrated flow was also investigated by comparative tensile tests on specimens with different TB densities at 400 degrees C. Details of tensile curves reveal that more TBs induce more pronounced serrations. Therefore, interaction between TBs and SBs is proposed to induce the serrated flow of the FeNi-base alloy at 400 degrees C. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[zhao, shuai; li, xiuyan; rong, lijian] chinese acad sci, inst met res, shenyang 110016, peoples r china.;rong, lj (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;ljrong@imr.ac.cn
关键词	Feni-base Alloys Mechanical Properties Microstructure Serrated Flow Twin Boundaries Activation-energy Single-crystals Stainless-steel Deformation Superalloy
URL	查看原文
WOS记录号	WOS:000293118000022
引用统计	被引频次：10[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/321006/30951
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. A. Zhao,X. Y. Li,L. J. Rong. Serrated flow induced by twin boundary-slip band interactions in a FeNi-base austenitic alloy[J]. Materials Letters,2011,65(15-16):2388-2390.
APA	S. A. Zhao,X. Y. Li,&L. J. Rong.(2011).Serrated flow induced by twin boundary-slip band interactions in a FeNi-base austenitic alloy.Materials Letters,65(15-16),2388-2390.
MLA	S. A. Zhao,et al."Serrated flow induced by twin boundary-slip band interactions in a FeNi-base austenitic alloy".Materials Letters 65.15-16(2011):2388-2390.