增材制造硼化钛增强钛基复合材料的研究进展

Additive Manufacturing (AM) has attracted widespread attention in the research and application fields of non-continuous reinforced titanium-based composite materials (DRTMCs) and other metal-based composite materials, due to its advantages of high design flexibility and near-net shaping of complex components. AM technology can effectively expand the control window on the microstructure and mechanical properties of DRTMCs through rapid solidification molding. Metal AM can be divided into powder bed fusion and directed energy deposition. PBF mainly include selective laser melting (SLM) and electron beam powder bed fusion (EBM), while DED mainly include laser metal deposition (LMD) and wire arc additive manufacturing (WAAM). This article reviews the recent developments in preparing titanium boride (TiB_w) reinforced DRTMCs by using the above technologies. Starting from the powder state, the influence of mixed powder and pre-alloyed composite powder on the scale characteristic parameters, matrix structure, and mechanical properties of TiB_w in DRTMCs was discussed. Based on this, the key issues and future development trends are also discussed.