SCR过程中浇注温度对A2017半固态合金组织的影响  

Effects of Pouring Temperatures on Microstructures of A2017Aluminium Alloy during SCR Process

作　　者：管仁国[1] 温景林[1] 刘相华[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《轻合金加工技术》2002年第6期41-43,28,共4页Light Alloy Fabrication Technology

基　　金：国家重点基础研究发展规划"973"项目(编号:G2000067208-4)

摘　　要：根据SCR技术的基本原理,采用有限元的方法计算出了不同浇注温度条件下SCR技术制备A2017半固态合金过程中的温度场。利用自行设计的单辊剪切/冷切技术(SCR技术)试验机进行了一系列实验,研究了浇注温度对A2017半固态合金内部组织的影响。根据模拟与实验分析得出了最佳浇注温度范围,在730～750℃温度范围内浇注,可制得具有细小均匀球形或椭球形晶粒组织的A2017半固态合金。A ccording to the principle of Shearing/Cooling Roll Process,FEM method was adapted to calculate thermal field under different pouring temperatures during manufacturing A2017semisolid alloy by Shearing/Cooling Roll Process.Using a self-made SCR test machine a series of experiments were carried out.Effects of Pouring temperatures on microstructures of alloy were investiged.By test and analysis optimization pouring temperature scope was obtained.When cast at730℃to750℃,fine and even microstructures of A2017alloy were obtained.

关 键 词：浇注温度 温度场 有限元 组织 铝合金 SCR技术 半固态加工 

分 类 号：TG292[金属学及工艺—铸造]