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Composition and orientation dependence of the interfacial energy in Fe–Cr stainless steel alloys
Author(s) -
Lu Song,
Hu QingMiao,
Johansson Börje,
Vitos Levente
Publication year - 2011
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201147123
Subject(s) - materials science , anisotropy , surface energy , composition (language) , chemical composition , morphology (biology) , orientation (vector space) , condensed matter physics , metallurgy , thermodynamics , composite material , physics , geometry , optics , linguistics , philosophy , genetics , mathematics , biology
Using a first‐principles quantum mechanical method, we calculated the (001) and (110) interfacial energies between the low temperature α and α′ phases of Fe–Cr alloys as functions of chemical composition. We show that the interfacial energies and the interfacial energy anisotropy are highly composition dependent. In particular, the increasing interfacial energy anisotropy with decreasing compositional gap may induce different morphology of the decomposed phases for different compositions of the host alloys.