Strengthening of CoNiFeV0.5Mo0.2 Medium Entropy Alloy Wire Rods with Loading-Unloading Cycles

Abstract

Changes in the texture as well as mechanical properties of CoNiFeV0.5Mo0.2 medium entropy alloy wire rods during loading–unloading are investigated. The intensity of the recrystallization texture {001}<110> component and fraction of low angle grains increase with the loading–unloading cycles and the alloy strength increases (934 MPa to 1083 MPa) due to dislocation increment in the loading–unloading cycles. The loading modulus (El) and average modulus (Esecant) for a hysteresis loop decrease slightly, whereas the unloading modulus (Eun) increases, the Eun increment of 5-TC-UTand 10-TC-UT are 22 and 137 GPa.