Journal article
Plasticity in Cu(111)/Cu46Zr54 glass nanolaminates under uniaxial compression
B Arman, C Brandl, SN Luo, TC Germann, A Misra, T Çaǧin
Journal of Applied Physics | AMER INST PHYSICS | Published : 2011
DOI: 10.1063/1.3627163
Abstract
We perform large-scale molecular dynamics simulations to investigate plasticity in CuCu46Zr54 glass nanolaminates under uniaxial compression. Partial and full dislocations are observed in the Cu layers, and screw dislocations are seen near the amorphous-crystalline interfaces (ACIs). Nucleation of shear bands in a glass layer is directly induced by the dislocations in the neighboring crystalline Cu layer through ACIs, and they grow from the ACIs into the glass layer and absorb ambient shear transformation zones. Plasticity in the glass layers is realized via pronounced, stable shear banding. © 2011 American Institute of Physics.
Grants
Awarded by U.S. Department of Energy
Funding Acknowledgements
We benefited from discussions with A. J. Cao, Y. Q. Cheng, and H. W. Sheng. This work is supported by LANL's Advanced Simulation and Computation (ASC) program. This work is partly (30%) sponsored by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Energy Frontier Research Center (EFRC) under Award No. 2008LANL1026. LANL is operated by Los Alamos National Security, LLC for the U.S. Department of Energy (DOE) under contract No. DE-AC52-06NA25396. B. A. and T. C. acknowledges partial support from DOE/LLNL. Computations were performed at Texas A&M University Supercomputing Center.