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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Abstract

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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