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Study on electronic theory of the interaction between rare earth elements and impurities at grain boundaries in Ni-base superalloy
Alternative TitleStudy on Electronic Theory of the Interaction between Rare Earth Elements and Impurities at Grain Boundaries in Ni-Base Superalloy
Zhou Yongjun1; Zhang Guoying2
2007
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume36Issue:12Pages:2160-2162
AbstractA 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.
Keywordlarge angle grain boundary Recursion method grain boundary segregation
Indexed ByCSCD
Language英语
CSCD IDCSCD:3070349
Citation statistics
Cited Times:4[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/145507
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.沈阳师范大学
Recommended Citation
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.
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