On plastic strain recovery in freestanding nanocrystalline metal thin films
Source abstract
Abstract
Abstract In a recent article [J. Rajagopalan, J.H. Han, M.T.A. Saif, Science 315 (2007) 1831–1834], we have reported substantial (50–100%) plastic strain recovery in freestanding nanocrystalline metal films (grain size 50–65 nm) after unloading. The strain recovery was time dependent and thermally activated. Here we model the time evolution of this strain recovery in terms of a thermally activated dislocation propagation mechanism. The model predicts an activation volume of ≈42b3 for the strain recovery process in aluminum.
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Research context
OpenAlex topics: Microstructure and mechanical properties · Metal and Thin Film Mechanics · Ion-surface interactions and analysis
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References (25)
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