摘要
利用连续波2kWNd YAG激光在Ti6Al4V合金表面原位制备TiN枝晶增强梯度金属基复合材料表面层,并研究了该表面层的显微组织和磨损性能。结果表明:该表面层沿激光熔化深度具有明显的梯度结构,表面层与Ti6Al4V基体之间呈现良好的冶金结合,Ti6Al4V的表面硬度及耐磨性得到了显著增强。
In the present paper, a continuous wave 2kW Nd-YAG laser was used to synthesize TiN/Ti metal matrix composite on the surface of Ti6Al4V alloy. The microstructure and the wear resistance of the synthesized SMMC were investigated. The synthesized surface TiN/Ti MMC had a pronounced gradient microstructure through the melt depth. Good metallurgical bonding between the reinforcing phase TiN of the SMMC and the Ti6Al4V matrix was observed. The hardness and wear resistance under block-on-ring dry sliding wear conditions of the synthesized TiN/Ti SMMC were markedly enhanced.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2004年第6期771-773,共3页
Journal of Functional Materials
基金
天津市自然科学基金应用基础研究重点资助项目(043803311)
