Exploring Microstructural Properties, Phase Transformations, and Wettability in High-Chromium Content Iron-bonded Ti(C,N)-based CermetShow others and affiliations
2025 (English)In: Journal of the Japan Society of Powder and Powder Metallurgy, ISSN 0532-8799, Vol. 72, p. S1533-S1540Article in journal (Refereed) Published
Abstract [en]
As the industrial and scientific communities embrace sustainable manufacturing and resource-efficient consumption, replacing traditional cobalt and nickel-based binders, along with tungsten carbide-based hardmetals, becomes essential. This study examines the impact of sintering temperature on the microstructural evolution and phase transformations of “green”, high-chromium content, iron-bonded Titanium Carbonitride (Ti(C,N)-FeCr) cermets. Comprising 70wt.% Ti(C,N), Fe, and 26 binder wt.% Cr, the cermet was sintered in a vacuum furnace. A clear connection was established between the microstructural evolution, mechanical properties, and wetting behavior of the cermet. Scanning electron microscopy (SEM) and optical microscopy (OM) revealed improvements in grain shapes, binder distribution, and dihedral angles with increasing sintering temperature. However, mechanical properties peaked at an optimal temperature of 1550°C. X-ray diffraction (XRD) confirmed the formation of M7C3 carbides, Ti(C,N), and FeCr phases, validating the phase diagram calculations. Enhanced wettability of FeCr bonded Ti(C,N) cermet was also demonstrated.
Place, publisher, year, edition, pages
Japan Society of Powder and Powder Metallurgy , 2025. Vol. 72, p. S1533-S1540
Keywords [en]
Titanium carbonitride, cermet, iron-chromium-based binder, sustainability, wettability
National Category
Metallurgy and Metallic Materials
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-112422DOI: 10.2497/jjspm.16p-t14-06Scopus ID: 2-s2.0-105001636307OAI: oai:DiVA.org:ltu-112422DiVA, id: diva2:1952328
Note
Godkänd;2025;Nivå 0;2025-04-15 (u5);
Full text license: CC BY-NC-ND 4.0;
Funder: Estonian Research Council (PRG1145);
2025-04-152025-04-152025-04-15Bibliographically approved