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Journal of Materials Engineering and Performance

Erschienen in:

19.05.2016

Mechanical Properties and Microstructure of the CoCrFeMnNi High Entropy Alloy Under High Strain Rate Compression

verfasst von: Bingfeng Wang, Ao Fu, Xiaoxia Huang, Bin Liu, Yong Liu, Zezhou Li, Xiang Zan

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 7/2016

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Abstract

The equiatomic CoCrFeMnNi high entropy alloy, which crystallizes in the face-centered cubic (FCC) crystal structure, was prepared by the spark plasma sintering technique. Dynamic compressive tests of the CoCrFeMnNi high entropy alloy were deformed at varying strain rates ranging from 1 × 10³ to 3 × 10³ s⁻¹ using a split-Hopkinson pressure bar (SHPB) system. The dynamic yield strength of the CoCrFeMnNi high entropy alloy increases with increasing strain rate. The Zerilli-Armstrong (Z-A) plastic model was applied to model the dynamic flow behavior of the CoCrFeMnNi high entropy alloy, and the constitutive relationship was obtained. Serration behavior during plastic deformation was observed in the stress-strain curves. The mechanism for serration behavior of the alloy deformed at high strain rate is proposed.

Vorheriger Artikel Long-Term Corrosion of Copper in Hot and Dry Atmosphere in Turpan, China

Nächster Artikel Wear Resistance of H13 and a New Hot-Work Die Steel at High temperature

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Titel: Mechanical Properties and Microstructure of the CoCrFeMnNi High Entropy Alloy Under High Strain Rate Compression
verfasst von: Bingfeng Wang
Ao Fu
Xiaoxia Huang
Bin Liu
Yong Liu
Zezhou Li
Xiang Zan
Publikationsdatum: 19.05.2016
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 7/2016
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-016-2105-5

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