Relating Residual Stress and Substructural Evolution During Tensile Deformation of an Aluminum-Manganese Alloy

Arijit Lodh, Tawqeer Nasir Tak, Aditya Prakash, P. J. Guruprasad, Christopher Hutchinson, Indradev Samajdar

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Interrupted tensile tests were coupled with ex situ measurements of residual stress and microtexture. The residual stress quantification involved measurements of six independent Laue spots and conversion of the interplanar spacings to the residual stress tensor. A clear orientation-dependent residual stress evolution emerged from the experiments and the numerical simulations. For the orientations undergoing negligible changes in ρGND (density of geometrically necessary dislocation), the residual stress developments appeared to be governed by the elastic stiffness of the grain clusters. For the others, the evolution of the residual stress and ρGND exhibited a clear orientation-dependent scaling.

Original languageEnglish
Pages (from-to)5317-5331
Number of pages15
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Issue number11
Publication statusPublished - 1 Nov 2017

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