随着激光增材制造金属件的质量和性能的提高,金属粉体材料已成为金属激光增材制造技术应用的制约因素,激光增材制造专用金属粉体材料成为了近年来的研究热点之一。针对激光增材制造钢粉体材料,从材料设计、粉体制备、表征评价、样件实例等方面综述了激光增材制造钢粉体材料的国内研究现状,提出了激光3D粉体材料研究和应用中存在的主要问题及发展方向。

With the improvement of the quality and performance of laser additive manufacturing metal components, the metal powder material has become a restraining factor for the application of metal laser additive manufacturing technology. Therefore, the special metal powder for laser additive manufacturing has recently become one of the research hotspots in the recent years. The research current status of steel powders used for laser additive manufacturing is reviewed from various aspects such as materials design, powder fabrication, powder evaluation and sample cases. Also, the main problems and research directions are put forward for the research and application of laser additive manufacturing steel powders.