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Effect of Cr and v on phase equilibria in Co-WC based hardmetals
RISE, Swerea, Swerea KIMAB AB.
RISE, Swerea, Swerea KIMAB AB.
2008 (Engelska)Ingår i: International Journal of Materials Research - Zeitschrift für Metallkunde, ISSN 1862-5282, E-ISSN 2195-8556, Vol. 99, nr 3, s. 287-293Artikel i tidskrift (Refereegranskat)
Abstract [en]

New measurements of the influence of Cr and V on the melting temperature of the binder phase in Co-based hardmetals are presented. It was shown that both Cr and V affect the melting temperature significantly. Cr decreases the melting temperature by over 100°C, and V by approximately 40°C. This is due to the high solubility of Cr and V in liquid Co, and this solubility was determined by experiments and calculations. The solubility of Cr in solid fccCo is also discussed, as well as the composition of the MC, M7C3 and the M6C carbides in alloys with Cr and V. The new experimental information is used to obtain a reliable thermodynamic description of the binder phase (Co-rich) in C-Co-Cr-W and C-Co-V-W alloys. Calculated equilibria are compared with experiments. © Carl Hanser Verlag GmbH & Co. KG.

Ort, förlag, år, upplaga, sidor
2008. Vol. 99, nr 3, s. 287-293
Nyckelord [en]
C-Co-Cr-W, C-Co-V-W, Carbides, Hardmetal, Thermodynamic calculations
Nationell ämneskategori
Materialteknik
Identifikatorer
URN: urn:nbn:se:ri:diva-12901DOI: 10.3139/146.101632Scopus ID: 2-s2.0-41749097833OAI: oai:DiVA.org:ri-12901DiVA, id: diva2:973094
Tillgänglig från: 2016-09-22 Skapad: 2016-09-22 Senast uppdaterad: 2017-11-21Bibliografiskt granskad

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