Carbon-doped TiZrN nanocomposite coatings were investigated for phase formation and wear behavior. They were prepared by laser carburization using carbon paste, and the thermal energy of the pulsed laser was limited to the range of 20 to 50%. X-ray photoelectron spectroscopy analysis revealed that the ratio of carbide (TiC, ZrC) increased as the thermal energy of the laser increased. The sp²/sp³ ratio increased by approximately 16% when the laser thermal energy was raised from 30 to 40%, and the formation of amorphous carbon was confirmed in the carbon-doped TiZrN coatings. As a result of microstructural analysis, the carbon-doped TiZrN nanocomposite was formed by an increase of hybrid bonds in expanded localized carbon clusters. Wear resistance was evaluated using a ball-on-disc tester, which showed that the friction coefficient decreased from 0.74 to 0.11 and the wear rate decreased from 7.63 × 10⁻⁶ mm³ (Nm)⁻¹ to 1.26 × 10⁻⁶ mm³ (Nm)⁻¹. In particular, the friction coefficient and wear rate improved by 71 and 66%, respectively, owing to the formation of carbon-doped TiZrN nanocomposite with amorphous carbon while the thermal energy was increased from 30 to 40%.

中文翻译：

---

碳掺杂TiZrN纳米复合涂层的激光渗碳相形成和耐磨性

研究了碳掺杂的TiZrN纳米复合涂层的相形成和磨损行为。它们是使用碳糊通过激光渗碳制备的，脉冲激光的热能限制在20％至50％的范围内。X射线光电子能谱分析表明，碳化物（TiC，ZrC）的比例随着激光热能的增加而增加。sp ² / sp ³当激光热能从30％提高到40％时，碳纳米管的比值增加了约16％，并且在掺碳的TiZrN涂层中证实了无定形碳的形成。作为微观结构分析的结果，碳掺杂的TiZrN纳米复合材料是通过扩大局部碳簇中杂化键的增加而形成的。使用圆盘球测试仪评估了耐磨性，结果表明摩擦系数从0.74降低至0.11，磨损率从7.63×10 ^-6 mm ³（Nm）^-1降低至1.26×10 ^-6 mm ³（牛米）^-1。特别是，由于与非晶碳形成了掺碳的TiZrN纳米复合材料，而热能从30％增加到40％，摩擦系数和磨损率分别提高了71％和66％。