Interfacial Segregation of Early Transition Metals in Nickel Aluminide

Hai-Ping Wang; Marcel Sluiter; Yoshiyuki Kawazoe

doi:10.2320/matertrans.42.407

MATERIALS TRANSACTIONS

Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678

Interfacial Segregation of Early Transition Metals in Nickel Aluminide

Hai-Ping Wang, Marcel Sluiter, Yoshiyuki Kawazoe

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Keywords: antiphase boundary, impurity, segregation, antiphase boundary energy, Ni₃Al, site preference

JOURNAL FREE ACCESS

2001 Volume 42 Issue 3 Pages 407-410

DOI https://doi.org/10.2320/matertrans.42.407

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Abstract

Segregation behavior of Ti, V, and Hf impurities at antiphase boundaries (APBs) in Ni₃Al is computed and related to the site preference. The effect of relaxation of atomic positions is considered. Using a relationship between site preference and segregation behavior, the effect of other transition metals on APBs is predicted.

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