激光热处理温度场及相变硬化带的快速计算

Rapid Determination of the Temperature Field and of the Geometry of the Hardened Zone in the Heat Treatment by a Powerful Laser Beam

提出了激光对金属材料表面非熔凝处理的稳态温度场快速计算以及快速确定铁基材料表面相变硬化带尺寸的方法。该方法不仅可以对任意功率密度分布的激光进行热作用计算，而且计算速度比相同精度的传统数值计算快两个数量级以上。

The present work proposes a method which can be used for a rapid calculation of the temperature field caused by a powerful laser during a superficial heat treatment. Using this result, we propose a method which can be used in order to assess the geometry of the hardened zone. These methods do not only allow us to calculate for any kind of beam energy repartition but also with a speed 100 times quicker than with traditional numerical methods.