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Sintering behavior, microstructure and properties of TiC-FeCr hard alloy
Institute of Powder Metallurgy, School of Materials Science and Engineering, University of Science and Technology, Beijing.ORCID-id: 0000-0003-4888-6237
Institute of Powder Metallurgy, School of Materials Science and Engineering, University of Science and Technology, Beijing.
Institute of Powder Metallurgy, School of Materials Science and Engineering, University of Science and Technology, Beijing.
Institute of Powder Metallurgy, School of Materials Science and Engineering, University of Science and Technology, Beijing.
2007 (Engelska)Ingår i: Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material, Vol. 14, nr 1, s. 89-93Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

TiC based cermets were produced with FeCr, as a binder, by conventional P/M (powder metallurgy) to near >97% of the theoretical density. Sintering temperature significantly affects the mechanical properties of the composite. The sintering temperature of >1360°C caused severe chemical reaction between TiC particles and the binder phase. In the TiC-FeCr cermets, the mechanical properties did not vary linearly with the carbide content. Optimum mechanical properties were found in the composite containing 57wt% TiC reinforcement, when sintered at 1360°C for 1 h. Use of carbon as an additive enhanced the mechanical properties of the composites. Cermets containing carbon as an additive with 49wt% TiC exhibited attractive mechanical properties. The microstructure of the developed composite contained less or no debonding, representing good wettability of the binder with TiC particles. Homogeneous distribution of the TiC particles ensured the presence of isotropic mechanical properties and homogeneous distribution of stresses in the composite. Preliminary experiments for evaluation of the oxidation resistance of FeCr bonded TiC cermets indicate that they are more resistant than WC-Co hardmetals

Ort, förlag, år, upplaga, sidor
2007. Vol. 14, nr 1, s. 89-93
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URN: urn:nbn:se:ltu:diva-8961DOI: 10.1016/S1005-8850(07)60018-8Lokalt ID: 78523d24-a0cf-4cd7-91ac-c05bd34d0e56OAI: oai:DiVA.org:ltu-8961DiVA, id: diva2:981899
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Upprättat; 2007; 20150416 (farakh)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2017-11-24Bibliografiskt granskad

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