摘要
采用光学,扫描电镜和x射线衍射详细地研究了合金ZnAl_(10)Cu_(22)的时效特性。结果表明,该合金在时效过程中发生β_S'、α_T'和α_f三相相继分解,时效后期的四相反应α_f+ε→T'+η与268℃的平衡相变α+εT'+η相应。
The characteristics of ageing of alloy ZnAl_(10)Cu_(22)were investigated in detail by using optical and scanning electron microscopy together with the X-ray diffraction analysis.It was found that the phase transformations of the alloy occuring during ageing consisted decompositions of β_s′,α_T′and α_f three phases.The four phase transformation α_f+ε→T′+η was correlated to the equilibrium relation α+ε(?)T′+η at 268C.
关键词
锌铝铜合金
时效
相变
调幅
分解
ZnAlCu alloy
Age
Phase transformation
Cellular reaction
Spinodal decomposition
