电介质对高温合金激光表面强化的增韧作用

Toughening Role of the Dielectric in the High Temperature Alloy's Laser Hardfacing

从提高强化合金的吸光率和降低其热输入总量的角度出发，研究了电介质在高温合金激光表面强化中的行为特点和对热裂纹的抑制作用。

Proceed in the point of riew to make the hardfacing alloy's absorptivity of Laser beam in -crease and make the total input of heat to them de-crease, the dielectrics act characteristics and its re-strainning role to the hot cracks in high temperaturealloy's laser hardfacing is studied.