Cu-Zn-Al合金逆形状记忆组织的电镜观察  

MICROSTRUCTURE AND REVERSE SHAPE MEMORY EFFECT IN A Cu-Zn-Al ALLOY

作　　者：董建新[1] 陈复民[2] 陈金铭[1] 刘文西[1] 

机构地区：[1]天津大学 [2]天津大学材料科学与工程系

出　　处：《金属学报》1990年第6期A467-A467,共1页Acta Metallurgica Sinica

基　　金：国家自然科学基金

摘　　要：用透射电镜观察了Cu-Zn-Al合金中逆形状记忆的贝氏体组织。在外加约束应力作用下,逆记忆量可以提高一个数量级,贝氏体片侧相界面的抛物线轮廓和贝氏体片交叉曲折的现象说明了贝氏体展宽是扩散控制的切变过程。The bainite structure related to the reverse shape memory effect has been observ- ed by means of TEM in a Cu-Zn-Al alloy. The reverse memory effect may be improved up to one order of magnitude under applied constraint stress. The widespread propagation of bai- nite was confirmed to be the diffusion controlled shear process by phenomina observed both the parabolic configuration of side interface of bainite plate and the twisting of intersected bainite plates.

关 键 词：CU-ZN-AL合金 逆形状记忆 贝氏体 

分 类 号：TG146.11[一般工业技术—材料科学与工程]