本文主要探讨了Cu—Al,及Cu—Al一Ni合金热弹马氏体的成分范围,热弹马氏体的形态及消长规律,同时探索了它们之间的关系,并对Cu—Al系合金的记忆效应进行初步探讨。实验结果表明: (1) 所研究的Cu—(13.4～13.9)％Al—(3.81～6.52)％Ni及Cu—(12～13.9)％Al合金具有明显的热弹性,且热滞较小。 (2) Cu—Al及Cu—Al—Ni系合金的热弹马氏体具有针状和矛头状两种基本类型,合金的成分影响马氏体的基本类型,随合金中含Al、Ni量的增加,使矛头状马氏体增多;随淬火冷速的增大也使矛头状马氏增多。 In this paper, the compositional ranges of hot-tempered martensite and the morphology and growth of martensite in Cu-Al and Cu-Al-Ni alloys were explored. The relationships between them were explored. The memory effect of the alloy was discussed. The experimental results show that: (1) The studied Cu- (13.4-13.9)% Al- (3.81-6.52)% Ni and Cu- (12-13.9%) Al alloys have obvious thermoelasticity and small thermal hysteresis. (2) The thermoelastic martensite of Cu-Al and Cu-Al-Ni alloy has two basic types of acicular and spearhead. The composition of the alloy affects the basic type of martensite. With the content of Al and Ni in the alloy The spearhead martensite increased; with the quench cooling rate increases also spearhead Ma’s increase.