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Title: Suppression of crystallization in a Ca-based bulk metallic glass by compression

Abstract

We have researched the crystallization kinetics of Ca 40Mg 25Cu 35 bulk metallic glass under isothermal annealing in the supercooled liquid region, with and without applied stress, by in situ high-energy synchrotron x-ray diffraction. We observed that without stress, crystallization started from the very beginning of isothermal annealing. Yet, when a uniaxial compressive stress was applied during isothermal annealing, no change in atomic order was observed at the beginning. Thereafter, the glassy structure relaxed, but still without noticeable evidence of crystallization. It is proposed that the applied compressive stress restricted the atomic mobility, which suppressed crystallization.

Authors:
 [1];  [2];  [1];  [1];  [3];  [4]; ORCiD logo [3];  [5];  [5]; ORCiD logo [6]
  1. City Univ. of Hong Kong, Kowloon (Hong Kong)
  2. City Univ. of Hong Kong, Kowloon (Hong Kong); Nanjing Univ., Nanjing, Jiangsu (China)
  3. Univ. of Science and Technology Beijing, Beijing (China)
  4. Argonne National Lab. (ANL), Lemont, IL (United States)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. City Univ. of Hong Kong, Kowloon (Hong Kong); City Univ.of Hong Kong Shenzhen Research Inst., Shenzhen, (China)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Natural Science Foundation of China (NNSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Scientific User Facilities Division
OSTI Identifier:
1504459
Alternate Identifier(s):
OSTI ID: 1545165
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 765; Journal Issue: C; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; annealing; bulk metallic glass; compression test; crystallization; in-situ x-ray diffraction

Citation Formats

Naeem, M., Lan, S., Wang, B., Wei, X. Y., Zhou, J., Ren, Y., Lu, Z. P., Ma, D., Stoica, A. D., and Wang, X. -L. Suppression of crystallization in a Ca-based bulk metallic glass by compression. United States: N. p., 2018. Web. doi:10.1016/j.jallcom.2018.06.200.
Naeem, M., Lan, S., Wang, B., Wei, X. Y., Zhou, J., Ren, Y., Lu, Z. P., Ma, D., Stoica, A. D., & Wang, X. -L. Suppression of crystallization in a Ca-based bulk metallic glass by compression. United States. doi:10.1016/j.jallcom.2018.06.200.
Naeem, M., Lan, S., Wang, B., Wei, X. Y., Zhou, J., Ren, Y., Lu, Z. P., Ma, D., Stoica, A. D., and Wang, X. -L. Tue . "Suppression of crystallization in a Ca-based bulk metallic glass by compression". United States. doi:10.1016/j.jallcom.2018.06.200. https://www.osti.gov/servlets/purl/1504459.
@article{osti_1504459,
title = {Suppression of crystallization in a Ca-based bulk metallic glass by compression},
author = {Naeem, M. and Lan, S. and Wang, B. and Wei, X. Y. and Zhou, J. and Ren, Y. and Lu, Z. P. and Ma, D. and Stoica, A. D. and Wang, X. -L.},
abstractNote = {We have researched the crystallization kinetics of Ca40Mg25Cu35 bulk metallic glass under isothermal annealing in the supercooled liquid region, with and without applied stress, by in situ high-energy synchrotron x-ray diffraction. We observed that without stress, crystallization started from the very beginning of isothermal annealing. Yet, when a uniaxial compressive stress was applied during isothermal annealing, no change in atomic order was observed at the beginning. Thereafter, the glassy structure relaxed, but still without noticeable evidence of crystallization. It is proposed that the applied compressive stress restricted the atomic mobility, which suppressed crystallization.},
doi = {10.1016/j.jallcom.2018.06.200},
journal = {Journal of Alloys and Compounds},
number = C,
volume = 765,
place = {United States},
year = {2018},
month = {6}
}

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