Acta Metallurgica Sinica (English Letters) ›› 1991, Vol. 4 ›› Issue (3): 221-224.

• Research paper • Previous Articles    

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.   

  • Received:1991-06-25 Revised:1991-06-25 Online:1991-06-25 Published:2009-10-10

Abstract: 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.

Key words: Cu-Zn-Al memory alloy, reverse shape memory effect, bainitic transformation