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Lattice strain evolution in a high volume fraction polycrystal nickel superalloy
Journal article   Peer reviewed

Lattice strain evolution in a high volume fraction polycrystal nickel superalloy

James Coakley and David Dye
Scripta materialia, Vol.67(5), pp.435-438
2012-09
DOI: https://doi.org/10.1016/j.scriptamat.2012.05.015

Abstract

Superalloy Nickel alloys Internal stresses Neutron diffraction CM247LC
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 {200} plane being least stiff and the {111} being the stiffest. Initial plasticity is due to yielding of the {220}. Deconvolution of the {200} and {220} 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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Citation topics
7 Engineering & Materials Science
7.12 Metallurgical Engineering
7.12.1288 Superalloy
Web Of Science research areas
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Nanoscience & Nanotechnology
ESI research areas
Materials Science

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