在马赫数为0.5气流条件下,进行了激光辐照30CrMnSiA钢材料的温度测量实验。实验结果显示,材料的温升速率和上升最高温度在有气流环境下比无气流环境下明显下降。利用数值反演方法获得了气流条件下激光加载面样品材料实际吸收热流密度变化以及温度变化。与无气流条件下的数据对比可发现,相同温度对应的实际吸收热流密度在气流环境下大于无气流环境,该结果是由气流条件加速样品材料的氧化影响激光金属反射率所致。 Under Mach number of 0.5, the temperature measurement experiment of laser irradiated 30CrMnSiA steel was carried out. The experimental results show that the material temperature rise rate and the maximum temperature rise in the presence of air flow than the absence of air flow significantly decreased. The actual absorption heat flux density and temperature change of laser-loaded surface sample under airflow condition were obtained by numerical inversion method. Comparing with the data without air flow, it can be found that the actual heat flux density corresponding to the same temperature is higher than that without air flow in the air flow environment. The result is the laser metal reflectivity is affected by the oxidation of the sample material under the air flow conditions.