Article Dans Une Revue Materials Research Proceedings Année : 2025

Tribological behavior and microstructure of IN718 produced by SPS in comparison with LMD and forged grades

Foad Naimi
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Résumé

Spark Plasma Sintering (SPS) was evaluated for its potential to enhance the wear resistance of Inconel 718, a key material for copper extrusion dies. Comparative wear tests assessed the tribological and mechanical performance of SPS-produced parts versus Laser Metal Deposition (LMD) and wrought parts. The study reveals that SPS, especially with ball-milled powders followed by aging, yields materials with significantly higher hardness and comparable wear resistance to LMD, despite distinct microstructures. Forged materials demonstrated superior performance, attributed to their nearly defect-free nature. The study highlights the influence of carbide stability and distribution in SPS materials as a promising route for optimization. These findings underscore SPS's ability to compete with traditional methods, offering tailored properties for high-demand applications and potential cost-efficiency improvements.

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hal-05079332 , version 1 (22-05-2025)

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Pierre Gorez, Foad Naimi, Eric Feulvarch, Vincent Fridrici. Tribological behavior and microstructure of IN718 produced by SPS in comparison with LMD and forged grades. Materials Research Proceedings, 2025, 54, pp.1134 - 1143. ⟨10.21741/9781644903599-123⟩. ⟨hal-05079332⟩
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