Deformation response of AgCu interfaces investigated by in situ and ex situ TEM straining and MD simulations

Eftink, Benjamin P.; Li, Ao; Szlufarska, I.; Mara, Nathan Allan; Robertson, Ian M.

doi:10.1016/j.actamat.2017.07.051

Title: Deformation response of AgCu interfaces investigated by in situ and ex situ TEM straining and MD simulations

Journal Article · Sat Jul 29 00:00:00 EDT 2017 · Acta Materialia

DOI:https://doi.org/10.1016/j.actamat.2017.07.051· OSTI ID:1374358

^[1]; Li, Ao ^[2]; Szlufarska, I. ^[2];

^[3]; Robertson, Ian M. ^[2]

Univ. of Illinois, Urbana, IL (United States)
Univ. of Wisconsin, Madison, WI (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The mechanisms of strain transfer across Ag/Cu interfaces were determined by a combination of in situ and ex situ TEM straining experiments and molecular dynamics simulations. Minimizing the magnitude of the Burgers vector of the residual dislocation generated in the interface was the dominant factor for determining the outcome of dislocation and deformation twin interactions with both non-coherent twin and cube-on-cube interfaces. This included the unexpected finding, due to the loading condition, of deformation twin activation in the Cu layer due to the intersection of deformation twins in Ag with the interface. As a result, deformation twin nucleation in Ag from the non-coherent twin interfaces was also explained by a Burgers vector minimization argument.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396; DEFG-02-07ER46443

OSTI ID:: 1374358

Alternate ID(s):: OSTI ID: 1549639

Report Number(s):: LA-UR-17-23996

Journal Information:: Acta Materialia, Vol. 138, Issue C; ISSN 1359-6454

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 28 works

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Effect of cooling rate on the structure and nanotribology of Ag–Cu nano-eutectic alloys Kwon, S. K.; Kim, H. D.; Pei, X. Q. Journal of Materials Science, Vol. 54, Issue 12 https://doi.org/10.1007/s10853-019-03533-5	journal	March 2019
Effect of cooling rate on the structure and nanotribology of Ag–Cu nano-eutectic alloys Kwon, S. K.; Kim, H. D.; Pei, X. Q. Universität des Saarlandes https://doi.org/10.22028/d291-29328	collection	January 2019

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Title: Deformation response of AgCu interfaces investigated by in situ and ex situ TEM straining and MD simulations

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