高强度铝合金超塑成形后的热处理强化

Heat Treatment of High Strength Aluminium Alloy after Superplastic Forming

对ＬＣ４超硬铝合金超塑成形后的固溶时效强化进行了试验研究，发现超塑变形能使固溶及时效过程加快，不易出现晶间无沉淀带，而对最大强化效果影响甚小。

Solution ageing strenghening of LC4 superhard aluminium alloy after superplastic forming has been investigated.The results show that the superplastic forming speeds up the processes of both solution and ageing,makes it difficult to form intergranular PFZ,and has little effect on maximum strength after ageing.