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Non-equilibrium solidification of the molten metal droplets impacting on a solid surface

机译:熔融金属液滴撞击固体表面的非平衡凝固

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摘要

A measuring method for the kinetic coefficient and activation energy of molten metals has been developed. This method is based on a splat thickness measurement of a molten metal droplet deposited on a polished metal substrate. An analytical solution of a non-equilibrium crystallization of a molten metal droplet impacting on a solid substrate relates the thickness of the splat to the kinetic coefficient. The dimensionless number showing the departure of the equilibrium phase transition from the non-equilibrium transition follows from the theory. The predicted values of the kinetic coefficient and activation energy agree well with the existing literature data.
机译:已经开发出一种测量熔融金属的动力学系数和活化能的方法。该方法基于沉积在抛光金属基材上的熔融金属滴的飞溅厚度测量。熔融金属液滴撞击到固体基质上的非平衡结晶的分析解决方案,将飞溅的厚度与动力学系数相关联。从理论上可以看出无量纲数表明了平衡相变与非平衡相变的偏离。动力学系数和活化能的预测值与现有文献数据非常吻合。

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