Microstructure and Properties of Fe2-xCrMnAlxCu High Entropy Alloy
Fe and Al were used as joint variables for fine tuning,and the effects of the common changes of Fe and Al on the phase structure,microstructure,compression properties,hardness and friction properties of Fe2-xCrMnAlxCu(x=1.3,1.4,1.5,1.6,1.7)high entropy alloy were analyzed.The results show that the interdendrite and dendrite structure of Fe2-xCrMnAlxCu high entropy alloy are composed of bcc phase,and the ordered bcc FeAl phase is precipitated inside the dendrite,and the content of precipitates increases slightly with the decrease in Fe content and the increase in Al content.The hardness of Fe2-xCrMnAlxCu high entropy alloy keeps increasing.When x=1.6,the comprehensive performance of high entropy alloy reaches the best,with the yield strength of 1205.43 MPa,the compressive strength of 1431.52 MPa and the deformation rate of 9.06%.
high entropy alloyorganizational structureprecipitatemechanical property