Microstructure Evolution and Microhardness of Ultrafine-grained High Carbon Steel during Multiple Laser Shock Processing

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	Microstructure Evolution and Microhardness of Ultrafine-grained High Carbon Steel during Multiple Laser Shock Processing
	Y.; He Xiong, T. T.; Ren, F. Z.; Li, P. Y.; Chen, L. F.; Volinsky, A. A.
	2015
Source Publication	Journal of Iron and Steel Research International
ISSN	1006-706X
Volume	22 Issue:1 Pages:55-59
Abstract	Surface microstructure and microhardness of (ferrite+cementite) microduplex structure of the ultrafine-grained high carbon steel after laser shock. processing (LSP) with different impact times were investigated by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and microhardness measurements. Equiaxed ferrite grains were refined from 400 to 150 nm, and the cementite lamellae were fully spheroidized, with a decrease of the particle diameter from 150 to 100 nm as the impact times increased. The cementite dissolution was enhanced significantly. Correspondingly, the lattice parameter of alpha-Fe and microhardness increased with the impact times.
description.department	[xiong, yi ; ren, feng-zhang ; li, peng-yan ; chen, lu-fei] henan univ sci & technol, sch mat sci & engn, luoyang 471003, henan, peoples r china. [xiong, yi ; ren, feng-zhang] henan collaborat innovat ctr nonferrous met gener, luoyang 471003, henan, peoples r china. [he, tian-tian] chinese acad sci, inst met res, shenyang 110016, liaoning, 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, henan, peoples r china. ; xy_hbdy@163.com
Keyword	Ultrafine-grained High Carbon Steel Laser Shock Processing Impact Times Microstructure Microhardness Austenitic Stainless-steel Residual-stress Stability Mechanical-properties Fatigue Behavior Surface Alloy Aisi-304 Impacts
URL	查看原文
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/73985
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Y.,He Xiong, T. T.,Ren, F. Z.,et al. Microstructure Evolution and Microhardness of Ultrafine-grained High Carbon Steel during Multiple Laser Shock Processing[J]. Journal of Iron and Steel Research International,2015,22(1):55-59.
APA	Y.,He Xiong, T. T.,Ren, F. Z.,Li, P. Y.,Chen, L. F.,&Volinsky, A. A..(2015).Microstructure Evolution and Microhardness of Ultrafine-grained High Carbon Steel during Multiple Laser Shock Processing.Journal of Iron and Steel Research International,22(1),55-59.
MLA	Y.,et al."Microstructure Evolution and Microhardness of Ultrafine-grained High Carbon Steel during Multiple Laser Shock Processing".Journal of Iron and Steel Research International 22.1(2015):55-59.

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