摘要
采用规则溶液模型与超组元模型计算了7种Fe—C—Si—Mn系合金的等温相变驱动力在此基础上估算了合金等温转变的相对形核率与相对孕育期。计算结果表明,不含碳的二元与三元合金,孕育期主要由相变驱动力决定;而含碳合金,相变驱动力不是相变动力学的主要控制因素,从一个侧面支持了溶质类拖曳(SDLE)理论。
Both regular solution and supper-component models were used to calculate
the driving force for isothermal transformation of Fe-C-Si-Mn alloys. The relative
nucleation rate and incubation period were estimated based on the calculated driving force.
The results suggest that for carbon-free alloys, the incubation is principally determined by the
driving force, while for carbon-contained alloys, the driving force is not the dominant factor.
The result is considered to be in accordance with what is prodicted by the solute drag-like ef-
fect (SDLE) theory on the transformation kinetics.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1993年第1期A001-A005,共5页
Acta Metallurgica Sinica
基金
国家自然科学基金
关键词
相变动力学
铁碳硅锰合金
贝氏体
transformation kinetics
driving force
Fe-C-Si-Mn alloy
