固溶工艺对ZL114A合金组织和性能的影响  

Influence of Solution Treatment on Microstructure and Properties of ZL114A Alloy

作　　者：李卫超[1] 邹勇志[1] 曾建民[1] 甘武奎 

机构地区：[1]广西大学有色金属及材料加工新技术教育部重点实验室,广西南宁530004 [2]江西洪都航空集团公司,江西南昌330034

出　　处：《铸造》2008年第6期565-568,共4页Foundry

摘　　要：通过金相分析、动力学分析和硬度测量等方法研究了固溶温度和时间对ZL114A合金共晶Si形态和性能的影响,并确定了最佳的固溶工艺。研究结果表明,固溶温度对共晶硅的粒化过程有很大的影响,在不产生过烧时,温度越高共晶Si的粒化越彻底,而且合金的硬度越高。通过对试验结果分析得出ZL114A合金最佳固溶工艺为550℃保温6 h。Metallographic analysis, hardness testing and diffusion kinetics analysis were Used to investigate the contribution of temperature and time to the morphological differences of eutectic Si and to property of ZL114A alloy in the process of solution. The results indicated that the solution temperature has a significant influence on spheroidization of eutectic Si. Under without overheating condition, both the spheroidization degree of eutectic Si and the hardness of ZL114A alloy increase with the increasing solution temperature. According to the experiment results, the optimal solution heat treatment of ZL114A alloy is determined for 550 ℃x6 h.

关 键 词：固溶工艺 铝合金 组织 

分 类 号：TG27[金属学及工艺—铸造]