双相钢激光热处理时激光吸收率的测定

Laser Absorptivity Measurements of Dual-phase Steel During Laser Heat Treatment

论述了积分球法和集总参数法测定激光吸收率的原理。采用这两种方法测定了双相钢在激光热处理过程中对YAG激光的吸收率。试验结果表明,积分球法和集总参数法测得的激光吸收率数值非常接近,双相钢的激光吸收率与温度相关。

The principle of laser absorptivity measured by the integrating sphere method and lumped parameter method was discussed. The YAG laser absorptivity of dual-phase steel during laser heat treatment was measured by these methods. The test results show, the laser absorptivity values measured by the integrating sphere method and lumped parameter method are very close, and the laser absorptivity of the dual-phasesteel is temperaturerelated.