Study on the influencing mechanism of composition of CoCrMnNiFe high entropy alloy composition on mechanical properties
To investigate the effect of composition changes on the mechanical properties of CoCrMn-NiFe high entropy alloys,molecular dynamics simulation was used to calculate the effects of principal component on the properties.The microscopic physical mechanism was analyzed.It was found that as the Ni content increased,the elastic modulus,yield strength,and tensile strength of CoCrMnNiFe high entropy alloy gradually increased.An increase in Fe,Mn,and Cr content will reduce the elastic modu-lus,yield strength,and tensile strength.The Co content has a relatively small impact on the mechanical properties.The study elucidated the microscopic physical mechanism by which compositional changes affect the strength of CoCrMnNiFe high entropy alloys.By regulating the composition of high entropy al-loys,the stacking fault energy can be controlled,thereby affecting their dislocation nucleation.
high entropy alloysmolecular dynamics simulationcompositionmechanical properties
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