3105铝合金铸锭的均匀化  

Homogenization for 3105 aluminium alloy ingots

作　　者：王岗 杨舜明 匡光辉 Wang Gang;Yang Shunming;Kuang Guanghui(Guangya Aluminum Co.,Ltd.,Foshan Guangdong 528237,China)

机构地区：[1]广亚铝业有限公司,广东佛山528237

出　　处：《金属热处理》2024年第8期200-203,共4页Heat Treatment of Metals

摘　　要：对3105铝合金铸锭进行不同均匀化工艺处理,并对其组织、电导率和硬度进行了测试。结果表明,均匀化过程中,3105铝合金同时发生溶质原子的析出和化合物的回溶。最佳的均匀化工艺为630℃×9 h,在此工艺下合金的电导率最低(22 MS/m),此时合金拥有较高的固溶度,有利于后续产品性能的提升;硬度也最低(36.94 HV5),可以较好地满足挤压热加工用低变形抗力的需求。Different homogenization processes were applied to 3105 aluminum alloy ingots,and microstructure,conductivity and hardness were tested.The results show that the precipitation of solute atoms and the redissolution of compounds occur simultaneously in the 3105 aluminum alloy during the homogenization process.The optimum homogenization process is 630℃×9 h.Under this process,the alloy has the lowest conductivity(22 MS/m),as well as a relatively high solid solubility,which is conducive to the subsequent product performance enhancement.The hardness is also the lowest(36.94 HV5),which can better satisfy the demand of low deformation resistance for extrusion hot working.

关 键 词：3105铝合金铸锭 均匀化 电导率 硬度 

分 类 号：TG166.3[金属学及工艺—热处理]