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Homogenisation of 20SiMn2MoV steel ingots: thermodynamic/kinetic simulation and experimental validation

机译：20SiMn2MoV钢锭的均质化：热力学/动力学模拟和实验验证

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摘要

The phase transformation behaviour and microsegregation profiles during solidification process of the 20SiMn2MoV as cast ingot was analysed using a computational simulation. Then a conservative estimate of the solidification temperature range was provided by the modified Scheil module of Thermo-Calc software, the result was combined with the previous results of the computational simulation and that were used to simulate the homogenization kinetics of this steel. The simulated maximum/minimum dendrite compositions were confirmed by the experimental composition analysis, the good agreement between the simulation and experiments shows that the thermodynamic calculation and kinetic simulation approaches can be used to design an optimised homogenisation heat treatment for as cast ingots, this method does not need a large amount of experimental data of test ingots.
机译：使用计算模拟分析了20SiMn2MoV铸锭凝固过程中的相变行为和微观偏析轮廓。然后，通过改进的Thermo-Calc软件的Scheil模块提供对凝固温度范围的保守估计，该结果与先前的计算模拟结果相结合，并用于模拟该钢的均质动力学。通过实验成分分析证实了模拟的最大/最小枝晶成分，模拟与实验之间的良好一致性表明，热力学计算和动力学模拟方法可用于设计铸锭的优化均质化热处理，该方法能够不需要大量的测试锭实验数据。

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