Strongly enhanced nitriding kinetics by means of grain refinement

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	Strongly enhanced nitriding kinetics by means of grain refinement
	W. P. Tong; C. S. He; J. C. He; L. Zuo; N. R. Tao; Z. B. Wang
	2006
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	89 期号:2
摘要	By means of surface mechanical attrition treatment (SMAT), a nanostructured surface layer was formed on a pure' Fe plate. Low-temperature gaseous nitriding of the SMAT Fe sample was investigated in comparison with the coarse-grained sample. It was found that the nitriding kinetics of nanostructured alpha-Fe was obviously enhanced, and the. temperature to form nitrides from the nanostructured alpha-Fe was greatly reduced with respect to that of the coarse-grained form. The effective activation energy for diffusion of nitrogen in nanocrystalline nitride layer was calculated from the temperature dependence of compound layer thickness, the obtained value being about 54.39 kJ/mol, evidently smaller than that for coarse-grained 8 phase (80.7 kJ/mol) and gamma' phase (88.3 kJ/mol). (c) 2006 American Institute of Physics.
部门归属	northeastern univ, key lab natl educ, minist electromagnet proc mat, shenyang 110004, peoples r china. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;tong, wp (reprint author), northeastern univ, key lab natl educ, minist electromagnet proc mat, shenyang 110004, peoples r china;wptong@epm.neu.edu.cn
关键词	Mechanical Attrition Treatment Diffusion Nanocrystallization Iron Phase Fe
URL	查看原文
WOS记录号	WOS:000239793100036
引用统计	被引频次：37[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/321006/34490
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. P. Tong,C. S. He,J. C. He,et al. Strongly enhanced nitriding kinetics by means of grain refinement[J]. Applied Physics Letters,2006,89(2).
APA	W. P. Tong,C. S. He,J. C. He,L. Zuo,N. R. Tao,&Z. B. Wang.(2006).Strongly enhanced nitriding kinetics by means of grain refinement.Applied Physics Letters,89(2).
MLA	W. P. Tong,et al."Strongly enhanced nitriding kinetics by means of grain refinement".Applied Physics Letters 89.2(2006).