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    郭伟, 余琪, 陈岩, 胡延波, 宋鸿武, 王松伟, 杨国富. 连续挤压与拉拔对Cu-2Ag-0.04La合金组织及性能的影响[J]. 机械工程材料, 2023, 47(7): 7-13. DOI: 10.11973/jxgccl202307002
    引用本文: 郭伟, 余琪, 陈岩, 胡延波, 宋鸿武, 王松伟, 杨国富. 连续挤压与拉拔对Cu-2Ag-0.04La合金组织及性能的影响[J]. 机械工程材料, 2023, 47(7): 7-13. DOI: 10.11973/jxgccl202307002
    GUO Wei, YU Qi, CHEN Yan, HU Yanbo, SONG Hongwu, WANG Songwei, YANG Guofu. Effect of Continuous Extrusion and Drawing on Microstructure and Properties of Cu-2Ag-0.04La Alloy[J]. Materials and Mechanical Engineering, 2023, 47(7): 7-13. DOI: 10.11973/jxgccl202307002
    Citation: GUO Wei, YU Qi, CHEN Yan, HU Yanbo, SONG Hongwu, WANG Songwei, YANG Guofu. Effect of Continuous Extrusion and Drawing on Microstructure and Properties of Cu-2Ag-0.04La Alloy[J]. Materials and Mechanical Engineering, 2023, 47(7): 7-13. DOI: 10.11973/jxgccl202307002

    连续挤压与拉拔对Cu-2Ag-0.04La合金组织及性能的影响

    Effect of Continuous Extrusion and Drawing on Microstructure and Properties of Cu-2Ag-0.04La Alloy

    • 摘要: 采用下引连铸定向凝固技术制备直径为14 mm的Cu-2Ag-0.04La合金棒,再经过连续挤压获得直径为7 mm的合金丝,最后经过6道次拉拔获得直径为2 mm的合金线,研究了连续挤压及拉拔对合金组织和性能的影响。结果表明:铸态合金在连续挤压时,001〈100〉织构减弱并形成少量的111〈112〉和110〈112〉织构,经过拉拔后,001〈100〉织构基本消失,111〈112〉和110〈112〉织构增强。连续挤压态合金的抗拉强度、断后伸长率、硬度、导电率分别为270.0 MPa,31.2%,84.3 HV,93.2%IACS,拉拔后分别为566.1 MPa,4.6%,151.6 HV,88.9%IACS。

       

      Abstract: Cu-2Ag-0.04La alloy rod with a diameter of 14 mm was prepared by downward continuous casting directional solidification technology, and then was continuously extruded to obtain alloy wire with a diameter of 7 mm, and finally was drawed for 6 passes to obtain alloy wire with a diameter of 2 mm. The effects of continuous extrusion and drawing on the microstructure and properties of the alloy were studied. The results show that during continuous extrusion of the as-cast alloy, 001〈100〉 texture was weakened, and a small amount of 111〈112〉 and 110〈112〉 textures were formed. After drawing, 001〈100〉 texture disappeared, and the strength of 111〈112〉 and 110〈112〉 textures increased. The tensile strength, percentage elongation after fracture, hardness and conductivity of the continuously extruded alloy were 270.0 MPa, 31.2%, 84.3 HV, 93.2%IACS, respectively, and after drawing were 566.1 MPa, 4.6%, 151.6 HV, 88.9%IACS, respectively.

       

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