【摘要】 应用固体经验电子理论，计算了ＣｕＺｎＡｌ记忆合金中第４组元Ｎｉ和Ｍｎ对Ａ＿２→Ｂ＿２和Ｂ＿２→ＤＯ＿３两种有序转变温度的影响。计算得出：Ｎｉ提高而Ｍｎ降低合金的有序转变温度。这与Ｎｉ和Ｍｎ对合金的马氏体稳定化影响的趋势一致。表明固体电子论可以说明ＣｎＺｎＡｌ合金的稳定化和用来指导探索记忆性能好的合金。更多还原

【Abstract】 In CuZnAl alloys,there are twotypes of order transformation A₂/B₂=and B₂/DO₃,and their critical temperatures T（A₂/B₂）and T（B₂/DO₃）have been calculated bv means of the em-pirical electron theory. The influence of the fourthalloying element Ni and Mn on the T（A₂/B₂）andT（B₂/DO₃ ） of the CuZnAl have been investigated.The results shown that the critical temperatures in-creased with the nickel content and decreased withthe manganese. By comparing the results with effectof nickel or manganese on the lnartensitic stabilization which is an importent property in the shapelnemory alloys,it was found that the criticaI temperatures represented the degree of the martensiticstabilization.更多还原