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https://hdl.handle.net/2440/105866
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Type: | Journal article |
Title: | Strain-rate effect upon the tensile behavior of CoCrFeNi high-entropy alloys |
Author: | Huo, W. Zhou, H. Fang, F. Hu, X. Xie, Z. Jiang, J. |
Citation: | Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, 2017; 689:366-369 |
Publisher: | Elsevier |
Issue Date: | 2017 |
ISSN: | 0921-5093 1873-4936 |
Statement of Responsibility: | Wenyi Huo, Hui Zhou, Feng Fang, Xianjun Hu, Zonghan Xie, d, Jianqing Jiang |
Abstract: | High-entropy alloys could replace conventional materials in critical load-bearing applications, owing to their excellent mechanical properties. Supported by X-ray diffraction, microstructure analysis and tensile testing, the mechanical response of CoCrFeNi HEAs to varying strain rates was investigated. The alloys were found to be a single-phase face-centered cubic solid solution. Their tensile strength and ductility increased with rising strain rate. The dominant deformation mechanism of the high-entropy alloy was observed to shift from the dislocation motion at the lower strain rates to stacking faults at the higher strain rates. The CoCrFeNi high-entropy alloys exhibited greater hardness following tensile deformation with higher strain rates. |
Keywords: | High-entropy alloy; CoCrFeNi; face-centered cubic; tensile behavior; strain rate |
Rights: | © 2017 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.msea.2017.02.077 |
Grant ID: | http://purl.org/au-research/grants/arc/DP160104632 |
Published version: | http://dx.doi.org/10.1016/j.msea.2017.02.077 |
Appears in Collections: | Aurora harvest 8 Mechanical Engineering publications |
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