论文部分内容阅读
建立了钢中非金属夹杂缺陷热波散射的理论模型,基于非傅里叶热传导理论和虚拟镜像法,对含非金属夹杂缺陷的钢中热波散射场进行分析与计算,得到方程的一般解,通过数值计算,给出了不同类型非金属夹杂缺陷的几何参数和物性参数条件下钢的表面温度分布。研究结果表明:非金属夹杂缺陷改变了热波在钢中的传播特性,导致钢表面温度分布呈现双峰形式;同时,非金属夹杂缺陷的几何参数和物性参数也会影响钢的表面温度分布,从而影响热波的传播特性。
The theoretical model of heat wave scattering in nonmetallic inclusions in steel was established. Based on non-Fourier heat conduction theory and virtual image method, the heat wave scattering field in steel with nonmetal inclusions was analyzed and calculated, and the general solution of the equation Through the numerical calculation, the surface temperature distribution of the steel under the geometric and physical parameters of different types of non-metallic inclusions is given. The results show that the non-metallic inclusion defects change the propagation characteristics of the heat wave in the steel, resulting in a double-peaked temperature distribution of the steel surface. Meanwhile, the geometric and physical parameters of the non-metallic inclusion defects also affect the surface temperature distribution of the steel, Thus affecting the propagation characteristics of thermal waves.