摘要
采用激光熔覆快速非平衡合成法制备了原位反应合成Y2O3-Ti B增强钛基复合材料。采用Y2O3、Ti和B的混合粉末在Ti-6Al-4V基体表面激光熔覆制得Y2O3-Ti B/Ti复合涂层。采用形貌观察、硬度和摩擦磨损测试等方法研究了复合涂层的显微硬度和摩擦磨损性能。结果表明熔覆层的硬度为基体材料的2~3倍,添加1%Y2O3的激光熔覆涂层硬度和摩擦磨损性较好。
In-situ reaction synthesized Y2O3-TiB reinforced titanium matrix composite was fabricated using rapid non-equilibrium synthesis techniques of laser cladding. Y2O3-TiB/Ti composite coating was fabricated on Ti-6Al-4V surface using Y2O3, Ti and B mixed-powder by laser cladding. The hardness, friction and wear behavior of the coatings were investigated by morphology observation, hardness tester and wear tester. The results show that the microhardness of the laser cladding coating is 2-3 times higher than that of matrix material. The hardness and friction and wear properties of laser cladding coatings with 1%Y2O3 content is better.
出处
《热加工工艺》
CSCD
北大核心
2016年第12期131-133,共3页
Hot Working Technology
基金
上海市大学生创新训练项目(cs1405012)
关键词
激光熔覆
复合涂层
摩擦磨损性
TI
B
laser cladding
composite coating
friction and wear properties
TiB
