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首页> 外文会议>Iron Steel Supplement 2005 vol.40: The Joint International Conference of HSLA Steels 2005 and ISUGS 2005 >Modeling of Ferrite Transformation Kinetics during Hot Strip Rolling of the Q460 Grade Steel
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Modeling of Ferrite Transformation Kinetics during Hot Strip Rolling of the Q460 Grade Steel

机译：Q460级钢带钢热轧过程中铁素体转变动力学模型

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Ferrite transformation plays an important role in the microstructure evolution process during hot rolling of steels, which determines mechanical properties of the products. Therefore, accurate mathematical models must be developed for better microstructure control. A thermodynamics-based mathematical model, employing the nucleation and growth theories, has been j developed to describe ferrite transformation behavior during hot strip rolling of the Q460 grade steel. In this paper, a new modeling | of the incubation time(τ_f ) for austenite to ferrite transformation was developed. By applying the Scheil's additivity rule, i transformation start temperatures during continuous cooling were calculated, and Cahn's transformation kinetics theory was adopted to calculate ferrite transformation volume fraction during continuous cooling, showing that the models had a good accuracy in predicting the transformation kinetics.
机译：铁素体相变在钢热轧过程中的组织演变过程中起着重要作用，它决定了产品的机械性能。因此，必须开发精确的数学模型以更好地控制微观结构。已经开发出一种基于热力学的数学模型，该模型采用成核和生长理论来描述Q460级钢热轧过程中的铁素体相变行为。本文提出了一种新的建模方法。研究了奥氏体向铁素体转变的保温时间（τ_f）。通过应用Scheil的可加性规则，计算出连续冷却过程中的转变开始温度，并采用Cahn转变动力学理论计算连续冷却过程中的铁素体转变体积分数，表明该模型在预测转变动力学方面具有良好的准确性。

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