According to the feature of the temperature distribution induced by laser scanning, the simple formulas for the fast calculation of the hardened case are set up.
根据激光扫描时工件内温度场及硬化层的分布特征，提出了简便实用的硬化层预测计算公式。
2
The hardness distribution without obviously declining gradient in one range of the hardened layer produced by plasma quenching is rather different from that by conventional quenching.
等离子表面淬火硬化层的硬度分布，在某一区域内无明显的硬度梯度，这与常规淬火方法的结果不太一样。
3
The results revealed that the non homogeneous distribution of the carbide caused the "zonal structure" appeared in the joint of drill rod which is hardened and hightemperature tempered.