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Title: Cooling rate dependence of structural order in Al 90Sm 10 metallic glass

Abstract

Here, the atomic structure of Al 90Sm 10 metallic glass is studied using molecular dynamics simulations. By performing a long sub-T g annealing, we developed a glass model closer to the experiments than the models prepared by continuous cooling. Using the cluster alignment method, we found that “3661” cluster is the dominating short-range order in the glass samples. The connection and arrangement of “3661” clusters, which define the medium-range order in the system, are enhanced significantly in the sub-T g annealed sample as compared with the fast cooled glass samples. Unlike some strong binary glass formers such as Cu 64.5Zr 35.5, the clusters representing the short-range order do not form an interconnected interpenetrating network in Al 90Sm 10, which has only marginal glass formability.

Authors:
ORCiD logo [1];  [2];  [2];  [2];  [3];  [4];  [5]
  1. Univ. of Science and Technology of China, Anhui (China); Ames Lab., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States)
  3. Univ. of Science and Technology of China, Anhui (China)
  4. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  5. Univ. of Science and Technology of China, Anhui (China); Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1349898
Report Number(s):
IS-J-9247
Journal ID: ISSN 0021-8979; TRN: US1701794
Grant/Contract Number:
2012CB933702; 11274288; 11574289; 201406340015; AC02-07CH11358
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 120; Journal Issue: 1; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Sun, Yang, Zhang, Yue, Zhang, Feng, Ye, Zhuo, Ding, Zejun, Wang, Cai -Zhuang, and Ho, Kai -Ming. Cooling rate dependence of structural order in Al90Sm10 metallic glass. United States: N. p., 2016. Web. doi:10.1063/1.4955223.
Sun, Yang, Zhang, Yue, Zhang, Feng, Ye, Zhuo, Ding, Zejun, Wang, Cai -Zhuang, & Ho, Kai -Ming. Cooling rate dependence of structural order in Al90Sm10 metallic glass. United States. doi:10.1063/1.4955223.
Sun, Yang, Zhang, Yue, Zhang, Feng, Ye, Zhuo, Ding, Zejun, Wang, Cai -Zhuang, and Ho, Kai -Ming. 2016. "Cooling rate dependence of structural order in Al90Sm10 metallic glass". United States. doi:10.1063/1.4955223. https://www.osti.gov/servlets/purl/1349898.
@article{osti_1349898,
title = {Cooling rate dependence of structural order in Al90Sm10 metallic glass},
author = {Sun, Yang and Zhang, Yue and Zhang, Feng and Ye, Zhuo and Ding, Zejun and Wang, Cai -Zhuang and Ho, Kai -Ming},
abstractNote = {Here, the atomic structure of Al90Sm10 metallic glass is studied using molecular dynamics simulations. By performing a long sub-Tg annealing, we developed a glass model closer to the experiments than the models prepared by continuous cooling. Using the cluster alignment method, we found that “3661” cluster is the dominating short-range order in the glass samples. The connection and arrangement of “3661” clusters, which define the medium-range order in the system, are enhanced significantly in the sub-Tg annealed sample as compared with the fast cooled glass samples. Unlike some strong binary glass formers such as Cu64.5Zr35.5, the clusters representing the short-range order do not form an interconnected interpenetrating network in Al90Sm10, which has only marginal glass formability.},
doi = {10.1063/1.4955223},
journal = {Journal of Applied Physics},
number = 1,
volume = 120,
place = {United States},
year = 2016,
month = 7
}

Journal Article:
Free Publicly Available Full Text
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  • Cited by 2
  • The atomic structure of Al{sub 90}Sm{sub 10} metallic glass is studied using molecular dynamics simulations. By performing a long sub-T{sub g} annealing, we developed a glass model closer to the experiments than the models prepared by continuous cooling. Using the cluster alignment method, we found that “3661” cluster is the dominating short-range order in the glass samples. The connection and arrangement of “3661” clusters, which define the medium-range order in the system, are enhanced significantly in the sub-T{sub g} annealed sample as compared with the fast cooled glass samples. Unlike some strong binary glass formers such as Cu{sub 64.5}Zr{sub 35.5},more » the clusters representing the short-range order do not form an interconnected interpenetrating network in Al{sub 90}Sm{sub 10,} which has only marginal glass formability.« less
  • Cited by 13
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