工艺参数对Al-7Si-3Cu合金液态模锻组织及性能研究  

Influence of Process Parameters on Microstructure and Properties of Liquid Die Forging Al-7Si-3Cu Alloy

作　　者：张会[1] 

机构地区：[1]陕西理工学院材料科学与工程学院,陕西汉中723003

出　　处：《热加工工艺》2013年第3期23-24,27,共3页Hot Working Technology

摘　　要：对ZL102中加入3%Cu制成的合金进行了液态模锻成形,对其力学性能、组织和断口形貌进行了分析研究。结果表明:液态模锻合金与金属型铸造合金的组织相比,白色的α(Al)变多,且分布均匀,细小;Al-7Si-3Cu合金最佳工艺为模具预热温度150℃,压力100kN,保压时间12s,浇注温度700℃;模具预热温度和压力是最关键的因素。The alloy produced by adding 3wt% Cu in ZL102 was formed in liquid die forging. And its mechanical properties, microstructure and fracture morphology were analyzed. The results show that： the microstructure of liquid die forging alloy comparing with the microstructure of permanent mold casting alloy,the white ct （Al） becomes more and distribution is even and fine; optimal process of Al-7Si-3Cu alloy is that the die preheat temperature is 150℃, the pressure is 100 kN, dwell time is 12 s, and pouring temperature is 700℃; die preheating temperature and pressure are the most critical factors.

关 键 词：铝硅铜合金 液态模锻 组织性能 

分 类 号：TG316.3[金属学及工艺—金属压力加工]