Effects of temperature on serrated flows of Al0.5CoCrCuFeNi high-entropy alloy
Abstract
Compression behavior of the Al0.5CoCrCuFeNi high-entropy alloy (HEA) was studied at different temperatures from 673 K to 873 K at a low strain rate of 5 x 10–5/s to investigate the temperature effect on the mechanical properties and serration behavior. The face-centered-cubic (fcc) structure is confirmed at the lower temperature of 673 K and 773 K, and a structure of mixed fcc and body-centered cubic (bcc) is identified at a higher temperature of 873 K after compression tests using high-energy synchrotron x-ray diffraction. As a result, by comparing the stress–strain curves at different temperatures, two opposite directions of serrations types were found, named upward serrations appearing at 673 K and 773 K and downward serrations at 873 K, which may be due to dynamic strain aging.
- Authors:
-
- Univ. of Tennessee, Knoxville, TN (United States)
- Taiyuan Univ. of Technology, Taiyuan (China)
- Univ. of Science and Technology Beijing, Beijing (China)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Univ. of Illinois Urbana-Champaign, Champaign, IL (United States)
- Publication Date:
- Research Org.:
- Univ. of Tennessee, Knoxville, TN (United States); Univ. of Illinois at Urbana-Champaign, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Fossil Energy (FE); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1224528
- Alternate Identifier(s):
- OSTI ID: 1245424
- Grant/Contract Number:
- FE0011194; AC02-06CH11357
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- JOM. Journal of the Minerals, Metals & Materials Society
- Additional Journal Information:
- Journal Volume: 67; Journal Issue: 10; Journal ID: ISSN 1047-4838
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; high-entropy alloy; mechanical properties; serration behavior
Citation Formats
Chen, Shuying, Xie, Xie, Chen, Bilin, Qiao, Junwei, Zhang, Yong, Ren, Yang, Dahmen, Karin A., and Liaw, Peter K. Effects of temperature on serrated flows of Al0.5CoCrCuFeNi high-entropy alloy. United States: N. p., 2015.
Web. doi:10.1007/s11837-015-1580-8.
Chen, Shuying, Xie, Xie, Chen, Bilin, Qiao, Junwei, Zhang, Yong, Ren, Yang, Dahmen, Karin A., & Liaw, Peter K. Effects of temperature on serrated flows of Al0.5CoCrCuFeNi high-entropy alloy. United States. https://doi.org/10.1007/s11837-015-1580-8
Chen, Shuying, Xie, Xie, Chen, Bilin, Qiao, Junwei, Zhang, Yong, Ren, Yang, Dahmen, Karin A., and Liaw, Peter K. 2015.
"Effects of temperature on serrated flows of Al0.5CoCrCuFeNi high-entropy alloy". United States. https://doi.org/10.1007/s11837-015-1580-8. https://www.osti.gov/servlets/purl/1224528.
@article{osti_1224528,
title = {Effects of temperature on serrated flows of Al0.5CoCrCuFeNi high-entropy alloy},
author = {Chen, Shuying and Xie, Xie and Chen, Bilin and Qiao, Junwei and Zhang, Yong and Ren, Yang and Dahmen, Karin A. and Liaw, Peter K.},
abstractNote = {Compression behavior of the Al0.5CoCrCuFeNi high-entropy alloy (HEA) was studied at different temperatures from 673 K to 873 K at a low strain rate of 5 x 10–5/s to investigate the temperature effect on the mechanical properties and serration behavior. The face-centered-cubic (fcc) structure is confirmed at the lower temperature of 673 K and 773 K, and a structure of mixed fcc and body-centered cubic (bcc) is identified at a higher temperature of 873 K after compression tests using high-energy synchrotron x-ray diffraction. As a result, by comparing the stress–strain curves at different temperatures, two opposite directions of serrations types were found, named upward serrations appearing at 673 K and 773 K and downward serrations at 873 K, which may be due to dynamic strain aging.},
doi = {10.1007/s11837-015-1580-8},
url = {https://www.osti.gov/biblio/1224528},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
issn = {1047-4838},
number = 10,
volume = 67,
place = {United States},
year = {Fri Aug 14 00:00:00 EDT 2015},
month = {Fri Aug 14 00:00:00 EDT 2015}
}
Web of Science
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