原位制备碳化钛颗粒增强钢铁基复合材料研究现状

Research Status of In-situ Titanium Carbide Particle Reinforced Steel Matrix Composite

对原位制备碳化钛颗粒增强钢铁基复合材料的形成机理、微观组织、力学性能及耐磨性的研究现状进行了归纳总结。原位制备碳化钛颗粒增强钢铁基复合材料是基于钛与碳的强结合能力,并同时满足热力学和动力学条件。其增强形式主要有单一的均匀碳化钛颗粒、表面梯度分布碳化钛颗粒、碳化钛颗粒束及碳化物共增强等,均具有复合区硬度高、耐磨性好的特点。其未来发展方向包括提高使用寿命和降低成本。

The research status of in-situ titanium carbide particle reinforced steel matrix composite in mechanism,microstructure,mechanical properties and wear resistance were summarized.The formation of Ti C particles is related with thermodynamics and kinetics.The composite layer morphology has uniform and dense,particle beam type,gradient profile of Ti C particle and total particle type.The composite layer has high hardness and high wear resistance.The development of future direction includes improving the life and reducing the cost.