Article ID Journal Published Year Pages File Type
1499655 Scripta Materialia 2012 4 Pages PDF
Abstract

Lattice strain evolution is measured by neutron diffractrometry during tensile testing of a high volume fraction polycrystal nickel superalloy. The intergranular strains reveal anisotropic deformation, with the {2 0 0} plane being least stiff and the {1 1 1} being the stiffest. Initial plasticity is due to yielding of the {2 2 0}. Deconvolution of the {2 0 0} and {2 2 0} doublets reveals co-deformation of γ and γ′ phases during plasticity. Comparisons are drawn with low and medium volume fraction superalloys.

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Physical Sciences and Engineering Materials Science Ceramics and Composites
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