真空自耗冶炼过程数值仿真研究进展

Research progress in numerical simulation of vacuum arc remelting process

借助计算机仿真技术研究真空自耗冶炼过程已成为一种新的发展趋势,此方法不仅有助于探明各工艺参数对真空自耗冶炼过程的影响与作用机理,还可对其冶炼过程的稳定性与铸锭的冶金质量进行有效预测。对此,简要介绍了国内外近30年来真空自耗冶炼过程数值模拟的发展历程与取得的科研成果。同时,以真空自耗冶炼过程模拟、宏观尺度模拟、微观尺度模拟为切入点,详细综述了国内外关于真空自耗冶炼模型、金属熔池模型及微观组织模型的研究进展与应用现状。最后,对国内进一步推动真空自耗冶炼过程数值模拟的开发与应用提出了新的发展方向。

To study the vacuum arc remelting process by means of computer simulation technology has gradually grown into a new trend.This method not only helps to ascertain the influences and mechanism of various technological parameters on the vacuum arc remelting process,but also can effectively predict the stability of the remelting process as well as the metallurgical quality of the ingot.Hence,the development history and the scientific research findings of the numerical simulation of the vacuum arc remelting process in the past 30years were briefly introduced.Meanwhile,the research progress and the application status of the vacuum arc remelting model,the metal molten pool model and the microstructure model were reviewed in detail by taking the smelting process simulation,the macroscale simulation and the micro-scale simulation as the breakthrough point.Finally,a new development direction was proposed for the further development and application of numerical simulation of the vacuum arc remelting process in China.