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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
Source PublicationMaterials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN0921-5093
Volume570Pages:82-86
AbstractUltrafine 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.
description.department[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
KeywordPearlitic 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
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71601
Collection中国科学院金属研究所
Recommended Citation
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.
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