Article ID Journal Published Year Pages File Type
1501844 Scripta Materialia 2009 4 Pages PDF
Abstract

The alloying effect of Mo, Ta and platinum group metals on the properties of γ′-Co3γ′-Co3(Al, W) are studied using supercell models. It is demonstrated that Mo, Ta, Rh, Ir and Pt can stabilize the γ′γ′ phase, and three types of site preference are recognized. The binding energy and the lattice constant of the γ′γ′ phase is modified and the distinct alloying effect of those elements is further revealed by investigating the impurity-induced charge density and the partial density of states.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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