Kinetics modeling of VC precipitation in ferrite
In light of Bhadeshias assumption which supposes the shape of VC in ferrite as a parabolic cylinder with constant concentration on the tip,a new mathematical model has been developed to describe the kinetics of VC precipitated in ferrite on the basis of classical nucleation theory and Zener-Hillert equation.The present model considers the influence of alloy composition,capillary,interracial structure and dislocation density on precipitation kinetics and can calculate the mean size and volume fraction of VC at different temperature and time.Model validation indicates that acceptable simulation precision has been obtained in the present model.
VC ferrite precipitation kinetics model
Zeng Yu Wang Wei
Baosteel Research Institute,Baoshan Iron &Steel Co.,Ltd.,Shanghai 201900,China
国际会议
上海
英文
636-640
2008-09-26（万方平台首次上网日期，不代表论文的发表时间）