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Preparation of high-mechanical-property medium-entropy CrCoNi alloy by asymmetric cryorolling

Journal Article


Abstract


  • In order to obtain good strength���plasticity synergy for a medium entropy alloy (MEA) CrCoNi, cold rolling, asymmetric rolling, cryorolling and asymmetric-cryorolling with subsequent annealing at different temperatures were conducted. The results showed that the asymmetric-cryorolled alloy achieved a high strength of over 1.6 GPa. After annealing at 1073 K, it retained a high strength of ~1 GPa while the elongation reached nearly 60%. After annealing, the heterogeneous characteristics were formed in asymmetric-cryorolled samples, which were found to be more distinct than those of the samples subjected to asymmetric rolling. This resulted in the generation of high strength and ductility.

Publication Date


  • 2022

Citation


  • WU, Y. Z., ZHANG, Z. Y., LIU, J., KONG, C., WANG, Y., TANDON, P., . . . YU, H. L. (2022). Preparation of high-mechanical-property medium-entropy CrCoNi alloy by asymmetric cryorolling. Transactions of Nonferrous Metals Society of China (English Edition), 32(5), 1559-1574. doi:10.1016/S1003-6326(22)65893-X

Scopus Eid


  • 2-s2.0-85130803604

Start Page


  • 1559

End Page


  • 1574

Volume


  • 32

Issue


  • 5

Place Of Publication


Abstract


  • In order to obtain good strength���plasticity synergy for a medium entropy alloy (MEA) CrCoNi, cold rolling, asymmetric rolling, cryorolling and asymmetric-cryorolling with subsequent annealing at different temperatures were conducted. The results showed that the asymmetric-cryorolled alloy achieved a high strength of over 1.6 GPa. After annealing at 1073 K, it retained a high strength of ~1 GPa while the elongation reached nearly 60%. After annealing, the heterogeneous characteristics were formed in asymmetric-cryorolled samples, which were found to be more distinct than those of the samples subjected to asymmetric rolling. This resulted in the generation of high strength and ductility.

Publication Date


  • 2022

Citation


  • WU, Y. Z., ZHANG, Z. Y., LIU, J., KONG, C., WANG, Y., TANDON, P., . . . YU, H. L. (2022). Preparation of high-mechanical-property medium-entropy CrCoNi alloy by asymmetric cryorolling. Transactions of Nonferrous Metals Society of China (English Edition), 32(5), 1559-1574. doi:10.1016/S1003-6326(22)65893-X

Scopus Eid


  • 2-s2.0-85130803604

Start Page


  • 1559

End Page


  • 1574

Volume


  • 32

Issue


  • 5

Place Of Publication