【摘要】 利用预涂ＳｉＣ粉的方法对Ｔｉ－６Ａｌ－４Ｖ合金进行激光表面合金化实验，制得了以ＴｉＣ和金属间化合物Ｔｉ_５Ｓｉ_３为增强相的耐磨复合材料表面改性层，合金层硬度及在二体磨料磨损与滑动磨损条件下的耐磨性均大幅度提高。表明利用ＳｉＣ粉激光表面合金化是提高钛合金耐磨性的一种有效方法。更多还原

【Abstract】 Hybird composite coatings reinforced by both TiC and Ti₅Si₃ are fabricated on substrate of the titanium alloy Ti- 6Al-4V alloy by laser surface alloying with SiC powder precoatings. The laser surface alloyed composite coatings have high hardness and excellent wear resistance under both abrasive and sliding wear conditions. It is demonstrated that laser surface alloying with SiC powder pre-coatings is a new advanced surface modification method for titanium alloys.更多还原