Low-pressure arc plasma-assisted nitriding of AISI 304 stainless steel

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	Low-pressure arc plasma-assisted nitriding of AISI 304 stainless steel
	Y. H. Zhao; B. H. Yu; L. M. Dong; H. Du; J. Q. Xiao
	2012
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	210 页码:90-96
摘要	AISI 304 stainless was modified by low-pressure arc plasma-assisted nitriding (PAN) process at different temperatures. The structure, micrographs and composition depth profile were investigated by X-ray diffraction (XRD), optical microscope, scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS), respectively. Microhardness profiles and corrosion behavior in 3.5% NaCl solution were measured by Vicker microhardness tester and potentiodynamic polarization curves, respectively. The results showed that the nitriding temperature had much effect on the phase composition, thickness and microhardness profiles of the nitrided layers. At lower temperature than 430 degrees C, expanded austenite phase was the major phase, while for higher temperature some iron nitride and CrN phases precipitated. The thickness of the nitrided layers increased with the nitriding temperature. The surface nitrogen concentration obtained was in the range of 23 and 27 at.%. The nitriding produced a surface hardening that can reach microhardness value up to 1300 HV0.05 and the hardening effect was analyzed. For lower temperature than 430 degrees C, the corrosion resistance of nitrided samples was not deteriorated. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
部门归属	[zhao, yanhui; yu, baohai; dong, limin; du, hao; xiao, jinquan] chinese acad sci, inst met res, shenyang 110016, peoples r china.;zhao, yh (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china.;yhzhao@imr.ac.cn
关键词	Low-pressure Arc Plasma-assisted Nitriding Austenitic Stainless Steel Austenite Microhardness Austenitic Stainless-steel Immersion Ion-implantation Low-temperature Glow-discharge Tribological Properties Nitrogen Layer Spectroscopy Behavior
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60492
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. H. Zhao,B. H. Yu,L. M. Dong,et al. Low-pressure arc plasma-assisted nitriding of AISI 304 stainless steel[J]. Surface & Coatings Technology,2012,210:90-96.
APA	Y. H. Zhao,B. H. Yu,L. M. Dong,H. Du,&J. Q. Xiao.(2012).Low-pressure arc plasma-assisted nitriding of AISI 304 stainless steel.Surface & Coatings Technology,210,90-96.
MLA	Y. H. Zhao,et al."Low-pressure arc plasma-assisted nitriding of AISI 304 stainless steel".Surface & Coatings Technology 210(2012):90-96.