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Journal Articles Procedia CIRP Year : 2022

Additive Manufacturing feasibility of WC-17Co cermet parts by Laser Powder Bed Fusion

Abstract

Cermets are composite materials consisting of a ceramic reinforcement and a metal matrix. Laser Powder Bed Fusion (L-PBF) is an Additive Manufacturing (AM) technology. The present paper deals with the feasibility study of AM of cermet parts by L-PBF using WC-17Co powder. The results showed that parametric optimization of the L-PBF process allowed the production of solid WC-17Co part. Structural analysis revealed the presence of significant porosity (1.41%) and small-scale cracks in the as-built samples. Post-processing by HIP (Hot Isostatic Pressure) significantly improved the structure of manufactured parts. The porosity became very low (0.01%) and XRD phase analysis revealed the absence of the fragile W2C phase. Abrasive wear and hardness tests showed that performances of additively manufactured parts were comparable to a reference part produced by powder sintering. The study successfully demonstrated the possibility of manufacturing wear-resistant cermet parts by L-PBF.
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emse-04397810 , version 1 (16-01-2024)

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Attribution - NonCommercial - NoDerivatives

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Kevin Papy, Jean-Marc Staerck, Alexey Sova, András Borbély. Additive Manufacturing feasibility of WC-17Co cermet parts by Laser Powder Bed Fusion. Procedia CIRP, 2022, 111, pp.153-157. ⟨10.1016/j.procir.2022.08.049⟩. ⟨emse-04397810⟩
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