CrCoNi中熵合金及其低温轧制方法

本发明涉及一种CrCoNi中熵合金及其低温轧制方法，属于金属材料技术领域。本发明所述CrCoNi中熵合金及其低温轧制方法包括：a.根据CrCoNi中熵合金等摩尔原子比配料，熔炼制备中熵合金锭；b.将a步骤所述中熵合金锭在-196～-160℃进行轧制，所述轧制后的中熵合金的压下量在40～70％；c.将b步骤低温轧制后的中熵合金，在真空或不与CrCoNi反应的惰性气氛下进行热处理，所述热处理的工艺为600～700℃保温10～60min。根据本发明的CoCrNi中熵合金液氮低温轧制方法，可以很好地改善材料的力学性能。 The invention relates to a CrCoNi medium-entropy alloy and a low-temperature rolling method thereof, and belongs to the technical field of metal materials. The CrCoNi medium-entropy alloy and the low-temperature rolling method of the CrCoNi medium-entropy alloy comprise the steps that a, proportioning is conducted according to the equal molar atomic ratio of the CrCoNi medium-entropy alloy, and a medium-entropy alloy ingot is prepared through smelting; b, the medium-entropy alloy ingot obtained in the step a is rolled at the temperature ranging from-196 DEG C to-160 DEG C, and the rolling reduction of the rolled medium-entropy alloy ranges from 40% to 70%; and c, the medium-entropy alloy rolled at the low temperature in the step b is subjected to heat tre