摘要
采用双电桥法、拉伸性能测试、光学及扫描电镜,研究了热处理工艺对铸态和热压缩态6063铝合金电导率及力学性能的影响。研究表明,经T6处理的铸态及热压缩态合金电导率均随时效时间的延长和温度的升高而提高;热压缩态合金电导率及抗拉强度均高于相同热处理条件的铸态合金;最优热处理工艺分别为:铸态合金525℃×1.0 h固溶处理+200℃×4.0 h时效处理,热压缩态合金525℃×1.0 h固溶处理+190℃×6.0 h时效处理。
Using double bridge method, tensile test, OM and SEM, the effects of heat treatment on conductivity and mechanical properties of as-cast and squeezed 6063 aluminum alloy were studied. The results show that, after T6 treatment, the electrical conductivity of both as-cast and squeezed alloys increase with the prolonging of aging time and the raising of treatment temperatures; the electrical conductivity and strength of the squeezed alloys are all higher than the as-cast alloys; the optimized heat treatment conditions are 525 ℃×1.0 h solid solution treatment ＋ 200℃ ×4.0 h aging treatment for as-cast alloy, and 525 ℃ ×1.0 h solid solution treatment ＋ 190℃ ×6.0 h aging treatment for squeezed state alloy, respectively.
出处
《铸造技术》
CAS
北大核心
2015年第7期1736-1738,共3页
Foundry Technology
关键词
AL-MG-SI合金
热处理
导电性
力学性能
Al-Mg-Si alloy
heat treatment
electrical conductivity
mechanical property
