Effect of carbon addition on the microstructure and mechanical properties of CoCrFeNi high entropy alloy

Effect of carbon addition on the microstructure and mechanical properties of CoCrFeNi high entropy alloy

The effects of C element on the microstructure and properties of CoCrFeNiC,. high entropy alloys （x denoted the atomic fraction of C element at 0, 0.05, 0.1, 0.2, 0.3, and 0.5） were investigated. The equal molar CoCrFeNi alloy with FCC structure exhibits high ductility but weak strength. With the ad...

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Veröffentlicht in:Science China. Technological sciences 2018-01, Vol.61 (1), p.117-123
Hauptverfasser: Huang, TianDang, Jiang, Li, Zhang, ChangLiang, Jiang, Hui, Lu, YiPing, Li, TingJu
Format: Artikel
Sprache:eng
Schlagworte:
Alloying elements
Alloys
Atomic structure
Engineering
High entropy alloys
Mechanical properties
Microstructure
Solution strengthening
Wear resistance
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Zusammenfassung:The effects of C element on the microstructure and properties of CoCrFeNiC,. high entropy alloys （x denoted the atomic fraction of C element at 0, 0.05, 0.1, 0.2, 0.3, and 0.5） were investigated. The equal molar CoCrFeNi alloy with FCC structure exhibits high ductility but weak strength. With the addition of C element, both the hardness and strength of the CoCrFeNiCx high entropy alloys increase as well as the wear resistance. The solution strengthening and the lbrmation of hard carbide phase are the main thctor for the improved strength, hardness and wear resistance of CoCrFeNiC~ high entropy alloys.
ISSN:1674-7321
1869-1900
DOI:10.1007/s11431-017-9134-6