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Title: An in situ neutron diffraction study of plastic deformation in a Cu 46.5Zr 46.5Al 7 bulk metallic glass composite

Micro-mechanical behaviors of a Cu 46.5Zr 46.5Al 7 bulk metallic glass composite in the plastic regime were investigated by continuous in situ neutron diffraction during compression. Three stages of the plastic deformation were observed according to the work-hardening rate. Here, the underlying natures of the work hardening, correlating with the lattice/microscopic strain evolution, are revealed for the three stages: (1) the initiation of shear bands, (2) the phase load transferring from the amorphous phase to the B2 phase and (3) the accelerated martensitic transformation and the work hardening of the polycrystalline phases promoted by the rapid propagation of the shear bands.
Authors:
 [1] ; ORCiD logo [2] ;  [3] ;  [4] ;  [4] ;  [3] ; ORCiD logo [2]
  1. Northeastern Univ., Shenyang (People's Republic of China); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Northeastern Univ., Shenyang (People's Republic of China)
  4. Chinese Academy of Sciences, Shenyang (People's Republic of China)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 153; Journal Issue: C; Journal ID: ISSN 1359-6462
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Bulk metallic glass composite; In situ neutron diffraction; Micro-mechanical behaviors; Amorphous; Load transfer
OSTI Identifier:
1439155

Wang, D. M., Chen, Yan, Mu, Juan, Zhu, Z. W., Zhang, H. F., Wang, Y. D., and An, Ke. An in situ neutron diffraction study of plastic deformation in a Cu46.5Zr46.5Al7 bulk metallic glass composite. United States: N. p., Web. doi:10.1016/j.scriptamat.2018.05.012.
Wang, D. M., Chen, Yan, Mu, Juan, Zhu, Z. W., Zhang, H. F., Wang, Y. D., & An, Ke. An in situ neutron diffraction study of plastic deformation in a Cu46.5Zr46.5Al7 bulk metallic glass composite. United States. doi:10.1016/j.scriptamat.2018.05.012.
Wang, D. M., Chen, Yan, Mu, Juan, Zhu, Z. W., Zhang, H. F., Wang, Y. D., and An, Ke. 2018. "An in situ neutron diffraction study of plastic deformation in a Cu46.5Zr46.5Al7 bulk metallic glass composite". United States. doi:10.1016/j.scriptamat.2018.05.012.
@article{osti_1439155,
title = {An in situ neutron diffraction study of plastic deformation in a Cu46.5Zr46.5Al7 bulk metallic glass composite},
author = {Wang, D. M. and Chen, Yan and Mu, Juan and Zhu, Z. W. and Zhang, H. F. and Wang, Y. D. and An, Ke},
abstractNote = {Micro-mechanical behaviors of a Cu46.5Zr46.5Al7 bulk metallic glass composite in the plastic regime were investigated by continuous in situ neutron diffraction during compression. Three stages of the plastic deformation were observed according to the work-hardening rate. Here, the underlying natures of the work hardening, correlating with the lattice/microscopic strain evolution, are revealed for the three stages: (1) the initiation of shear bands, (2) the phase load transferring from the amorphous phase to the B2 phase and (3) the accelerated martensitic transformation and the work hardening of the polycrystalline phases promoted by the rapid propagation of the shear bands.},
doi = {10.1016/j.scriptamat.2018.05.012},
journal = {Scripta Materialia},
number = C,
volume = 153,
place = {United States},
year = {2018},
month = {5}
}