研究目的

To review the current research of LPBF of Inconel 625, focusing on the microstructure, mechanical properties, the development of residual stresses, and the mechanism of defect formation, and to provide new possibilities for manufacturing Inconel 625 parts with high geometrical complexity and good properties.

研究成果

The review concludes that LPBF offers great potential for the production of complex IN625 components but notes the need for further research to optimize process parameters, understand microstructure evolution, and improve mechanical properties. Future studies should focus on characterizing defects and microstructure, studying anisotropy and site-specific features, and establishing models to predict microstructure evolution and residual stress distribution.

研究不足

The review highlights the need for more studies on the correlation between LPBF processing parameters and as-built microstructures, the influence of various heat treatments on microstructure evolution and residual stress release, and the need for research on other important properties such as high-temperature tensile strength, corrosion resistance, and creep properties.