HIGH STRENGTH 7475 AI ALLOYS GRAIN REFINEMENT BY THERMOMECHANICAL TREATMENT
形变热处理细化7475Al合金的晶粒

A thermomechanical treatment for grain refinement in 7475 aluminium al-loy is reported.The process includes solution treatment,deformation and recrystallizationsteps.This treatment procedure is more suitable for application in a modern plant.Thegrain size