Ideal maximum strengths and defect-induced softening in nanocrystalline-nanotwinned metals
Abstract
Strengthening of metals through nanoscale grain boundaries and coherent twin boundaries is manifested by a maximum strength-a phenomenon known as Hall-Petch breakdown. Different softening mechanisms are considered to occur for nanocrystalline and nanotwinned materials. Here, we report nanocrystalline-nanotwinned Ag materials that exhibit two strength transitions dissimilar from the above mechanisms. Atomistic simulations show three distinct...
Paper Details
Title
Ideal maximum strengths and defect-induced softening in nanocrystalline-nanotwinned metals
Published Date
Sep 23, 2019
Journal
Volume
18
Issue
11
Pages
1207 - 1214
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