Deformation response of AgCu interfaces investigated by in situ and ex situ TEM straining and MD simulations
Abstract
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.
- Authors:
-
[1];
[3];
- Univ. of Illinois, Urbana, IL (United States)
- Univ. of Wisconsin, Madison, WI (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1374358
- Alternate Identifier(s):
- OSTI ID: 1549639
- Report Number(s):
- LA-UR-17-23996
Journal ID: ISSN 1359-6454
- Grant/Contract Number:
- AC52-06NA25396; DEFG-02-07ER46443
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Acta Materialia
- Additional Journal Information:
- Journal Volume: 138; Journal Issue: C; Journal ID: ISSN 1359-6454
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Dislocations; Eutectic; In situ transmission electron microscopy (TEM); MD simulations; Interfaces
Citation Formats
Eftink, Benjamin P., Li, Ao, Szlufarska, I., Mara, Nathan Allan, and Robertson, Ian M. Deformation response of AgCu interfaces investigated by in situ and ex situ TEM straining and MD simulations. United States: N. p., 2017.
Web. doi:10.1016/j.actamat.2017.07.051.
Eftink, Benjamin P., Li, Ao, Szlufarska, I., Mara, Nathan Allan, & Robertson, Ian M. Deformation response of AgCu interfaces investigated by in situ and ex situ TEM straining and MD simulations. United States. https://doi.org/10.1016/j.actamat.2017.07.051
Eftink, Benjamin P., Li, Ao, Szlufarska, I., Mara, Nathan Allan, and Robertson, Ian M. Sat .
"Deformation response of AgCu interfaces investigated by in situ and ex situ TEM straining and MD simulations". United States. https://doi.org/10.1016/j.actamat.2017.07.051. https://www.osti.gov/servlets/purl/1374358.
@article{osti_1374358,
title = {Deformation response of AgCu interfaces investigated by in situ and ex situ TEM straining and MD simulations},
author = {Eftink, Benjamin P. and Li, Ao and Szlufarska, I. and Mara, Nathan Allan and Robertson, Ian M.},
abstractNote = {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.},
doi = {10.1016/j.actamat.2017.07.051},
journal = {Acta Materialia},
number = C,
volume = 138,
place = {United States},
year = {Sat Jul 29 00:00:00 EDT 2017},
month = {Sat Jul 29 00:00:00 EDT 2017}
}
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