Effects of laser shock processing on surface microstructure and mechanical properties of ultrafine-grained high carbon steel

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	Effects of laser shock processing on surface microstructure and mechanical properties of ultrafine-grained high carbon steel
	Y. Xiong; T. T. He; Z. Q. Guo; H. Y. He; F. Z. Ren; A. A. Volinsky
	2013
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	570 页码:82-86
摘要	Ultrafine micro-duplex structure (ferrite (alpha)+ cementite (theta)) formed in a pearlitic Fe-0.8C steel after four passes of equal channel angular pressing (ECAP) at 923 K via route Bc. Subsequently the surface of the ultra-micro-duplex structure was treated by multiple laser shock processing (LSP) impacts with different laser pulse energies. The microstructure was obviously refined due to the ultra-high plastic strain induced by LSP. The lattice parameter of alpha-Fe increased with the laser pulse energy, indicating that the cementite dissolution was enhanced. In addition, residual stress and microhardness increased with the LSP pulse energy. (C) 2013 Elsevier B.V. All rights reserved.
部门归属	[xiong, yi ; guo, zhiqiang ; he, hongyu ; ren, fengzhang] henan univ sci & technol, sch mat sci & engn, luoyang 471003, peoples r china. [xiong, yi ; ren, fengzhang] henan key lab adv nonferrous met, luoyang 471003, peoples r china. [he, tiantian] chinese acad sci, inst met res, shenyang 110016, peoples r china. [volinsky, alex a.] univ s florida, dept mech engn, tampa, fl 33620 usa. ; xiong, y (reprint author), henan univ sci & technol, sch mat sci & engn, luoyang 471003, peoples r china. ; xy_hbdy@163.com
关键词	Pearlitic Steels Ultrafine Grained Microstructure Equal Channel Angular Pressing Laser Shock Processing Residual Stress Microhardness Austenitic Stainless-steel Aluminum-alloy Evolution Behavior Impacts Wear Ecap Lsp
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71601
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Xiong,T. T. He,Z. Q. Guo,et al. Effects of laser shock processing on surface microstructure and mechanical properties of ultrafine-grained high carbon steel[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2013,570:82-86.
APA	Y. Xiong,T. T. He,Z. Q. Guo,H. Y. He,F. Z. Ren,&A. A. Volinsky.(2013).Effects of laser shock processing on surface microstructure and mechanical properties of ultrafine-grained high carbon steel.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,570,82-86.
MLA	Y. Xiong,et al."Effects of laser shock processing on surface microstructure and mechanical properties of ultrafine-grained high carbon steel".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 570(2013):82-86.