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Additive manufacturing of CMCs with bimodal microstructure

Maurya, HS and Vikram, RJ and Kosiba, K and Juhani, K and Sergejev, F and Suwas, S and Prashanth, KG (2023) Additive manufacturing of CMCs with bimodal microstructure. In: Journal of Alloys and Compounds, 938 .

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Official URL: https://doi.org/10.1016/j.jallcom.2022.168416


The present work deal with the fabrication of TiC-based composites with green Fe-based binder via additive manufacturing such as selective laser melting/laser fusion bed process. The as-built specimen exhibits a bimodal microstructure consisting of fine/ultrafine dendritic and coarser TiC phases. By adopting a novel multiple scan strategy, process defects such as cracks were eliminated by careful control of the melt pool temperature/cooling rates. Even though the mechanical properties may be improved, the anisotropic distribution of the dual phase leads to anisotropic distribution of hardness within the CMC surface. © 2022 Elsevier B.V.

Item Type: Journal Article
Publication: Journal of Alloys and Compounds
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to Elsevier Ltd.
Keywords: Additive manufacturing; Remelting; Selective laser melting; Titanium carbide-based composites
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 27 Jan 2023 07:07
Last Modified: 27 Jan 2023 07:07
URI: https://eprints.iisc.ac.in/id/eprint/79525

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