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

材料科学技术（英文）, 1992, 8(4): 289-293.

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

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

Keywords： internal friction , null , null , null

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.

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