YANG Quanmin KANG Mokuang Northwestern Polytechnical University
,
Xi'an
,
China YANG Quanmin
,
Dept.of Material Science and Engineering
,
Zhejiang University
,
Hangzhou 310027
,
China
金属学报(英文版)
The chemical driving forces for the phase transformation from austenite in three different car- bon-depleted regions into ferrite with the identical composition have been derived respectively. The starting temperature of bainitic transformation,B_s,has also been calculated according to the shearing mechanism of bainitic transformation in carbon-depleted regions of austenite. The maximum driving forces for banitic transformation at B_s in both 3% Cr and the CrMo steels were obtained.It was shown that the proposed shearing mechanism of the bainitic trans- formation is thermodynamically possible.
关键词:
bainitic
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null
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