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

DONG Jianxin CHEN Fumin CHEN Jinming LIU Wenxi Tianjin University , Tianjin , China At pressent he works in Department of materials Science and Technology , University of Science and Technology , Beijing.

金属学报(英文版)

The bainite structure in a Cu-Zn-A1 alloy related to the reverse shape memory effect has been observed by means of TEM.The reverse memory effect may be improved by up to one order of magnitude under applied constraint stress.The widespread propagation of bainite was confirmed to be the diffusion controlled shear process by the parabolic configuration of side interface of bainite plate and the twisting of intersected bainite plates.

关键词: Cu-Zn-Al memory alloy , null , null

Cu-Zn-Al合金逆形状记忆组织的电镜观察

董建新 , 陈复民 , 陈金铭 , 刘文西

金属学报

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。

关键词: Cu-Zn-Al记忆合金 , bainitic transformation

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