Strengthening of ceramic coated steel by laser quenching

提出了一种获得高性能陶瓷涂层钢的表面改性新技术--“涂层后激光淬火”技术，并对该技术的效果进行了研究。结果表明，涂层后激光淬火可有效提高涂层的结合强度、耐磨性和基体硬度，且涂层表面无损伤，对涂层硬度和断裂强度无不利影响。此外，还通过该工艺制作了真实的零件，并对该工艺的应用性进行了探讨。

A new surface modification technique, to obtain high performance ceramic coated steel, named "Laser quenching after coating" was proposed, and the effects of this technique were investigated. It was found that laser quenching after coating can effectively improve the adhesive strength, wear resistance and substrate hardness without a surface damage and any detrimental effect on the film hardness, fracture strength of the ceramic-coated specimens. Moreover, the real parts were made through this process, and thepossibilityof utilizationofthis techniquewas alsoexamined.