钛合金的激光表面硬化

Laser Cladding Coaters on Titanium Alloy

钛合金具有良好的机械性能、生物相容性和耐腐蚀性能,已用于航空结构材料和牙科功能材料。但应用中发现钛合金硬度低、不耐磨损的缺陷。本文在钛合金表面制备TiC为主的激光熔覆层,自行设计了两种预涂粉层的成分,相应地制备了(TiC+Ti)和(TiC+Ti+F102)两种熔覆层。经各种检测和分析得知:(TiC+Ti+F102)熔覆层有可能用于钛合金的航空结构材料;而(TiC+Ti)熔覆层有希望用于牙科功能材料,但需要进一步做模拟试验和装机(或临床)试验。

Titanium alloy has good mechanical properties, organisms conqmtibility and corrosion resistance, and has been applied in structural materials for aerospaee and dental materials. However, in actual application, it is found that the titanium alloy is not hard enough and not wear resistance. In this paper, the laser cladding TiC composite coating on the surface of TC4 alloy was gained, two compositions of pre coating layer were designed, and the laser cladding TiC ＋ Ti and TiC ＋ Ti ＋ F102 composite coating on the surface of TC4 alloy was obtained. The laser cladding TiC ＋ Ti ＋ F I02 composite coating have many applications as structural materials for aerospace and the laser cladding TiC ＋ Ti can be expected to be applied as dental materials. However, further simulation tests and clinical tests are required.