研究目的
The production and characterization of a laser textured 316L stainless steel reinforced with CuCoBe-diamond composites by laser sintering to improve the surface performance of the steel.
研究成果
The laser sintering process successfully reinforced the laser-textured 316L stainless steel with CuCoBe-diamond composites, improving its surface performance without inducing phase transformations or oxidation. The largest diamond particles provided the best tribological behavior.
研究不足
The study focused on the influence of diamond particle size on the reinforcement's properties and did not explore other potential reinforcing materials or sintering conditions.
1：Experimental Design and Method Selection
The study involved mechanical alloying of CuCoBe and synthetic diamond powders, laser texturing of 316L stainless steel, and laser sintering of the composites onto the textured steel.
2：Sample Selection and Data Sources
Commercial CuCoBe powders and synthetic diamond particles of two different size ranges were used. The textured 316L stainless steel samples were analyzed for their physical, chemical, and surface properties.
3：List of Experimental Equipment and Materials
Nd: YAG laser for texturing and sintering, 3D profilometry for surface analysis, SEM and EDS for microstructure and chemical analysis, XRD for phase analysis, Vickers hardness tester, and a pin-on-plate tribometer for wear tests.
4：Experimental Procedures and Operational Workflow
The process included mechanical alloying of the composite powders, laser texturing of the steel, sandblasting to remove oxides, laser sintering of the composites, polishing, and subsequent analysis and testing.
5：Data Analysis Methods
The data was analyzed using SEM and EDS for microstructure and chemical composition, XRD for phase identification, hardness tests for mechanical properties, and tribological tests for wear behavior.
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