本文研究了冷变形前过时效、固溶温度、保温时间、变形量、加热速度等热机械处理工艺对Al-Li-Cu-Mg-Zr 合金再结晶行为的影响。结果表明:冷变形前的时效工艺对再结晶的影响非常显著。在275℃时效4h,强烈阻碍再结晶,而在400℃时效4h,促进再结晶。固溶温度越高,越有利于再结晶,且晶粒越粗大,但保温时间对再结晶的影响不显著。大变形量和快速加热也有利于再结晶。本文探讨了各种因素影响再结晶的机制。
An investigation Was made for the influence of thermomechanical treatmentprocessing such as overaging prior to cold work,solution temperature,solution time,coldwork,heating rate,etc.on the recrystallization behavior of A1-Li-Cu-Mg-Zr alloys.Theresults ind
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