Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment

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	Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment
	W. P. Tong; Z. Han; L. M. Wang; J. Lu; K. Lu
	2008
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	202 期号:20 页码:4957-4963
摘要	A nanocrystalline surface layer was fabricated on a 38CrMoAl steel plate by means of a surface mechanical attrition treatment (SMAT). The average grain size in the top surface layer (10 pm thick) is about 10 nm, and the grain size stability can be maintained up to 450 degrees C. The effect of the surface nanocrystalline layer on the gas nitriding process at a lower temperature was investigated by using structural analysis and wear property measurements. The surface nanocrystallization evidently enhances nitricling kinetics and promotes the formation of an ultrafine polycrystalline compound layer. The results of the investigation showed that this new gas nitriding technique can effectively increase the hardness and wear resistance of the resulting surface layer in comparison with conventional nitriding, demonstrating a significant advancement for materials processing. (c) 2008 Elsevier B.V. All rights reserved.
部门归属	[tong, w. p.; han, z.; lu, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [tong, w. p.; wang, l. m.] ne univ, minist educ, key lab electromagnet proc mat, shenyang 110004, peoples r china. [lu, j.] hong kong polytech univ, dept mech engn, hong kong, hong kong, peoples r china.;tong, wp (reprint author), ne univ, minist epm, key lab natl educ, shenyang 110004, peoples r china;wptong@mail.neu.edu.cn
关键词	Nitriding Nanocrystalline Materials 38crmoal Steel Surface Mechanical Attrition Treatment Wear Resistance Aisi 304-stainless-steel Nanocrystalline Copper Grain-size Plasma Wear Alloys Iron Fe Nucleation Resistance
URL	查看原文
WOS记录号	WOS:000258048400010
引用统计	被引频次：152[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/321006/33110
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. P. Tong,Z. Han,L. M. Wang,et al. Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment[J]. Surface & Coatings Technology,2008,202(20):4957-4963.
APA	W. P. Tong,Z. Han,L. M. Wang,J. Lu,&K. Lu.(2008).Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment.Surface & Coatings Technology,202(20),4957-4963.
MLA	W. P. Tong,et al."Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment".Surface & Coatings Technology 202.20(2008):4957-4963.