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

Xulong An; Chenglin Chu; Wenwen Sun; Wei Wei

doi:10.3390/ma15041493

Strengthening of CoNiFeV_0.5Mo_0.2 Medium Entropy Alloy Wire Rods with Loading-Unloading Cycles

Materials (Basel). 2022 Feb 17;15(4):1493. doi: 10.3390/ma15041493.

Authors

Xulong An¹, Chenglin Chu², Wenwen Sun², Wei Wei¹

Affiliations

¹ School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China.
² School of Materials Science and Engineering and Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China.

Abstract

Changes in the texture as well as mechanical properties of CoNiFeV_0.5Mo_0.2 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 (E_l) and average modulus (E_secant) for a hysteresis loop decrease slightly, whereas the unloading modulus (E_un) increases, the Eun increment of 5-TC-UTand 10-TC-UT are 22 and 137 GPa.

Keywords: CoNiFeV0.5Mo0.2; loading-unloading cycles; mechanical properties; medium entropy alloy (MEA); textures.

Abstract

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