Study on electronic theory of the interaction between rare earth elements and impurities at grain boundaries in Ni-base superalloy

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	Study on electronic theory of the interaction between rare earth elements and impurities at grain boundaries in Ni-base superalloy
其他题名	Study on Electronic Theory of the Interaction between Rare Earth Elements and Impurities at Grain Boundaries in Ni-Base Superalloy
	Zhou Yongjun 1; Zhang Guoying 2
	2007
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	36 期号:12 页码:2160-2162
摘要	A model of large angle grain boundary in Ni was set up by using CSL model. The E-SE and segregation energies of impurities for a large angle grain boundary in Ni were calculated by using Recursion method. The calculated results of ESE show that B, C, La, Y, Sc have lower ESE towerds GBs exists. They intend to replace the other impurities, occupy the sites of grain boundaries first to purify grain boundary. Calculations of segregation energies show that B, C, La, Y, Sc have the lower segregation energies on the grain boundary than those on the surface, it means that they are toughness impurities.
关键词	large angle grain boundary Recursion method grain boundary segregation
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:3070349
引用统计	被引频次：4[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/145507
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.沈阳师范大学
推荐引用方式 GB/T 7714	Zhou Yongjun,Zhang Guoying. Study on electronic theory of the interaction between rare earth elements and impurities at grain boundaries in Ni-base superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2007,36(12):2160-2162.
APA	Zhou Yongjun,&Zhang Guoying.(2007).Study on electronic theory of the interaction between rare earth elements and impurities at grain boundaries in Ni-base superalloy.RARE METAL MATERIALS AND ENGINEERING,36(12),2160-2162.
MLA	Zhou Yongjun,et al."Study on electronic theory of the interaction between rare earth elements and impurities at grain boundaries in Ni-base superalloy".RARE METAL MATERIALS AND ENGINEERING 36.12(2007):2160-2162.