论文部分内容阅读
以快速凝固CuCr10合金薄片为模拟对象,将真空室、铜板和样品作为一个整体换热系加以考虑,采用一维傅立叶热传导方程描述热传输过程,并建立快速凝固过程的数值分析模型;通过结合热传导理论和凝固理论对热传导方程的数学解析求解,计算了快速凝固CuCr10合金薄片的温度场和冷却速度,得到了快速凝固100μm厚CuCr10合金薄片的自由侧的冷却速度为4.9×106 K/s,这与单辊旋铸CuCr10合金的实验结果相当吻合。
Taking the rapid solidification of CuCr10 alloy sheet as the simulation object, the vacuum chamber, the copper plate and the sample are considered as a whole heat exchange system. The one-dimensional Fourier heat conduction equation is used to describe the heat transfer process and the numerical analysis model of the rapid solidification process is established. By combining the heat conduction Theory and solidification theory, the temperature field and cooling rate of rapidly solidified CuCr10 alloy sheet were calculated. The cooling rate of the free side of rapidly solidified CuCr10 alloy sheet was 4.9 × 106K / s Experimental results with single-roll cast CuCr10 alloy are in good agreement.