摘要
本文提出了一种细化7475Al 合金晶粒的简化工艺。该工艺由固溶处理、轧制及再结晶组成。该工艺适合于工业生产。经过细化后的7475Al 合金平均晶粒尺寸可以达到10μm,具有优良的超塑性能。
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 produced by this processing schedule is approximately 10μm in average.After thegrain refinement,the 7475 aluminum alloy can exhibit an excellent superplasticity.
关键词
晶粒细化
铝合金
形变热处理
thermomechanical treatment
grain refinement
superplasticity
