喷射沉积AlZn11Mg2Cu1合金的固溶处理制度研究

Research on Solution Treatment of Spray Deposited AlZn11Mg2Cu1 Alloy

对喷射沉积法制备的A1Zn11Mg2Cu1合金在465℃、485℃、500℃三种固溶温度下进行了合金组织和性能的研究。结果表明，试验合金适宜的固溶处理制度为485℃，保温1h，水淬。分析表明，喷射沉积制备的合金的晶粒度为4～5μm，晶粒比较均匀。用TEM对峰时效态的试验合金进行了微观组织分析，合金经固溶处理和时效处理后，沉淀相首先沿晶界析出，然后在晶内析出，其尺寸一般为5～10nm。

Microstructure and properties of spray deposited AIZnl 1Mg2Cu1 alloy were investigated by tests at three diffierent solution teperatures of 465 ℃, 485 ℃and 500℃. The results show that the appropriate solution treatment condition is 485 ℃/1h, water quench. The grains of spray deposited A1Znl 1Mg2Cul alloy was homogeneous with size of 4-5μm.