Concentration of point defects in binary NiAl

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	Concentration of point defects in binary NiAl
	Y. L. Hao; Y. Song; R. Yang; Y. Y. Cui; D. Li; M. Niinomi
	2003
发表期刊	Philosophical Magazine Letters
ISSN	0950-0839
卷号	83 期号:6 页码:375-384
摘要	A mean-field-type model was established to describe the concentration of point defects in binary NiAl by taking into account the effects of crystal expansion and off-stoichiometry. Different from some recent studies, this analysis shows that constitutional vacancies are present only in Al-rich NiAl at T = 0 K but that the vacancy concentration decreases with increasing temperature until diffusion is activated and thereafter becomes nearly independent of temperature. Such vacancy formation behaviour in Al-rich NiAl belongs to the category of metastable constitutional type according to a method of classifying vacancy formation in B2 crystals proposed in this letter.
部门归属	chinese acad sci, inst met res, titanium alloy lab, shenyang 110016, peoples r china. univ london, dept mat, london e1 4ns, england. toyohashi univ technol, dept prod syst engn, toyohashi, aichi 4418580, japan.;hao, yl (reprint author), chinese acad sci, inst met res, titanium alloy lab, 72 wenhua rd, shenyang 110016, peoples r china
关键词	Intermetallic Compound Feal High-temperature Region Long-range Order Vacancies Behavior Alloys Phase Al
URL	查看原文
WOS记录号	WOS:000184452700004
引用统计	被引频次：5[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/321006/35844
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. L. Hao,Y. Song,R. Yang,et al. Concentration of point defects in binary NiAl[J]. Philosophical Magazine Letters,2003,83(6):375-384.
APA	Y. L. Hao,Y. Song,R. Yang,Y. Y. Cui,D. Li,&M. Niinomi.(2003).Concentration of point defects in binary NiAl.Philosophical Magazine Letters,83(6),375-384.
MLA	Y. L. Hao,et al."Concentration of point defects in binary NiAl".Philosophical Magazine Letters 83.6(2003):375-384.