Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 1    No. 1    October 1991

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KINETICS CHARACTERISTICS OF BAINITE FORMATION IN Cu-Zn-A1 ALLOYS`i
Jiang Lixin, Lu Wei, Jiang Bohong, Xu Zuyao(T.Y.Hsu)

Shanghai Jiao Tong University, Shanghai 200030, China

Abstract:TTT diagrams and kinetics curves of bainite formation through up quenching from martensitic state and cooling from high temperature parent phase in Cu-Zn-A1 alloys are established by means of dilatometiy and metallographic inspection.Experimental results show that the kinetics characteristics of bainite formation obey the Austin-Rickett Equation with n= 2.25 for up-quenched specimens and n= 1.80 for specimens cooled from high temperature, and the activation energy of bainite formation is about.110 kJ/mol: corresponding to that of the diffusion of solute atoms.

 

Key words: Cu-Zn-AI alloy, bainitic transformation, kinetics

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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