淬火冷却方式对7A52铝合金方管材组织与性能的影响  

Effect of Quenching Cooling Method on Microstructure and Properties of 7A52 Aluminum Alloy Square Pipe

作　　者：冯哲 石玲 韩如意 唐强 吴海旭 何庆昌 何金 刘桐宇[2] 苏睿明[2] FENG Zhe;SHI Ling;HAN Ruyi;TANG Qiang;WU Haixu;HE Qingchang;HE Jin;LIU Tongyu;SU Ruiming(Liaoning Zhongwang Group Co.,Ltd.,Liaoyang 111003,Liaoning,China;School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110870,Liaoning,China)

机构地区：[1]辽宁忠旺集团有限公司,辽宁辽阳111003 [2]沈阳工业大学材料科学与工程学院,辽宁沈阳110870

出　　处：《热处理技术与装备》2024年第4期6-9,共4页Heat Treatment Technology and Equipment

摘　　要：通过金相组织观察和室温力学性能测试,研究了在线风冷淬火、在线水罐淬火和离线淬火对壁厚为5 mm的7A52铝合金方管材显微组织与力学性能的影响。结果表明,7A52铝合金方管材采用在线水罐淬火冷却方式时,其抗拉强度为483 MPa,屈服强度为431 MPa,断后伸长率为13%,既可满足产品的强度要求,又能降低生产成本。The effects of on-line air cooling quenching,on-line water tank quenching and off-line quenching ways on the microstructure and mechanical properties of 7A52 aluminum alloy square pipe with a wall thickness of 5 mm were studied by metallographic observation and room temperature mechanical properties test.The results showed that with cooling method of on-line water tank quenching,the tensile strength of 7A52 aluminum alloy square pipe was 483 MPa,yield strength after fracture was 431 MPa and elongation after fracture was 13%,which could not only meet the strength requirements of products,but also reduce the production cost.

关 键 词：7A52铝合金 淬火冷却方式 显微组织 力学性能 

分 类 号：TG146.2[一般工业技术—材料科学与工程]