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利用大功率脉冲Nd∶YAG激光器,在Ti6Al4V合金表面制备TiC增强金属基复合材料改性层。分别采用10%质量百分比的W2C,Cr3C2与纯钛粉末混合,通过激光熔化处理工艺,在Ti6Al4V表面制备原位合成TiC/Ti金属基复合材料改性层。结果表明,在适宜的激光辐照工艺条件下,随预置合金粉末种类的不同,复合材料基体组织结构分别由单相-αTi及-βTi组成,弥散细小的TiC颗粒增强相均匀分布于Ti基复合材料涂层中,熔覆层内增强相与复合材料基体界面洁净,无任何界面反应相生成。
TiC reinforced metal matrix composite modified layer was prepared on the surface of Ti6Al4V alloy by using high power pulsed Nd:YAG laser. The modified TiC / Ti matrix composites were prepared on the surface of Ti6Al4V by mixing 10% W2C and Cr3C2 with pure titanium powders respectively by laser melting process. The results show that under appropriate laser irradiation conditions, with the different types of pre-alloyed powders, the matrix structure of the composite material consists of single phase -αTi and -βTi respectively. The finely dispersed TiC particles are uniformly distributed in the Ti-based In the composite coating, the interfacial phase between the reinforcing phase and the composite matrix in the cladding layer is clean without any interfacial reaction phase.