Review of Research on Strength and Plasticity of FeCoNiCrAl High-entropy Alloy
Although the unique structural characteristics and excellent properties make it have a wide range of appli-cation prospects,the lack of cutting performance research limits the expansion of high-entropy alloy(HEA)engineering ap-plications.The influence of strength and plasticity on the machining properties of HEA is the most significant factor.There-fore,the effect of heat treatment,element ratio and manufacturing technology on plasticity and strength of FeCoNiCrAl HEA is summarized.It's found that appropriate heat treatment temperature,holding time and cooling method can change the al-loy's cutting performance.Adding Al,Cr,Ti,V,Nb,Mo,Si to the alloy using vacuum arc melting method can improve the strength and decrease the plasticity.The addition of Ni and C can reduce the strength and increase the plasticity,so it's fea-sible to adjust these parameters to make it meet the engineering requirements.
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