MODELING OF ISOTHERMAL PRECIPITATION KINETICS IN HSLA STEELS AND ITS APPLICATION
来源期刊：Acta Metallurgica Sinica2004年第6期
论文作者：X.M.Zhao Z.Y.Liu L.Z.Zhang D.Wu
Key words：isothermal precipitation; kinetics; HSLA steel;
Abstract: Microalloying elements in high-strength low-alloy steels, such as Nb, Ti and V, precipitate during hot-rolling processes. On the basis of classical theory of nucleation and growth, quantitative modeling of isothermal precipitation was developed, which was tested by the stress relaxation method, the calculated precipitation-time-temperature curve is in good agreements with the measured results, then the model was applied to predict the precipitation behavior during continuous cooling.
X.M.Zhao1，Z.Y.Liu1，L.Z.Zhang1，D.Wu1
(1.The State Key Lab. of Rolling and Automation, Northeastern University, Shenyang 110004, China)
Abstract:Microalloying elements in high-strength low-alloy steels, such as Nb, Ti and V, precipitate during hot-rolling processes. On the basis of classical theory of nucleation and growth, quantitative modeling of isothermal precipitation was developed, which was tested by the stress relaxation method, the calculated precipitation-time-temperature curve is in good agreements with the measured results, then the model was applied to predict the precipitation behavior during continuous cooling.
Key words:isothermal precipitation; kinetics; HSLA steel;
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