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Thermodynamic calculations and experimental verification in the WC-Co-Cr cemented carbide system (Reprint of Int. Journal of Refractory Metals and Hard Materials vol 48, pg 257-262, 2015)
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Sandvik Coromant R&D, Stockholm, Sweden.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0001-5031-919X
2015 (English)In: INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, ISSN 0263-4368, Vol. 49, 400-405 p.Article in journal (Refereed) PublishedText
Abstract [en]

Tungsten carbide and cobalt have always been, and still are, the foundation of cemented carbides. Modem grades include several other alloying elements, apart from just WC-Co, added for several different purposes. For example, by adding chromium it is possible to produce extremely fine grained grades compared to straight WC-Co grades and thus the freedom to tailor the properties of the material is increased. By applying thermodynamic calculations it is possible to design the material and also avoid some of the costly trial-and-error procedures. However, there is also a need for experimental verification in order to have confidence in the predictive calculations. The present work concerns the application of thermodynamic calculations to some relevant compositions together with experimental verification in the WC-Co-Cr system. Special focus is given to the limiting conditions for precipitation of unwanted phases with regards to the Cr-content in the binder, C-content and melting temperatures. No regard is taken to the presumable Cr-solubility in the WC phase itself.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 49, 400-405 p.
Keyword [en]
WC-Co-Cr, Phase diagrams, Cr7C3, Thermodynamics
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-179089DOI: 10.1016/j.ijrmhm.2015.01.010ISI: 000352667100051OAI: oai:DiVA.org:kth-179089DiVA: diva2:881712
Note

Qc 20151211

Available from: 2015-12-11 Created: 2015-12-10 Last updated: 2015-12-11Bibliographically approved

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Kaplan, BartekSelleby, Malin
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