Relationship between Relaxation Internal Friction Peak at about 200℃(f≈1Hz)and Bainitic Transformation In a CuZnAl Alloy

J Mater Sci Technol ›› 1992, Vol. 8 ›› Issue (4): 289-293.

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Relationship between Relaxation Internal Friction Peak at about 200℃(f≈1Hz)and Bainitic Transformation In a CuZnAl Alloy

Received:1992-07-28 Revised:1992-07-28 Online:1992-07-28 Published:2009-10-10

Abstract

Abstract: The present investigation showed that the re- laxation peak at about 200℃ (f≈1Hz) was related to bainitic transformation in a CuZnAl alloy.The peak decreased when bainite precipitated.The activation energy of the peak was the same as the apparent activation energy of bainitic transforma- tion.According to the relations between the peak and the bainitic transformation,the mechanism of the peak has been discussed.

Key words: internal friction, CuZnAl alloy, shape memory alloy, bainitic transformation

ZHAO Zengqi CHEN Feixia YANG Dazhi BAO Er ** Physical Laboratory,Baotou Research Institute of Rare Earth,Baotou,014010,China*** Dept.of Materials Engineering,Dalian University of Technology,Dalian,116024,China**** Dept.of Materials Engineering,Yanshan Uni. Relationship between Relaxation Internal Friction Peak at about 200℃(f≈1Hz)and Bainitic Transformation In a CuZnAl Alloy[J]. J Mater Sci Technol, 1992, 8(4): 289-293.

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Relationship between Relaxation Internal Friction Peak at about 200℃(f≈1Hz)and Bainitic Transformation In a CuZnAl Alloy

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