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Understanding Quality Control of Hard Metals in Industry - A Quantum Mechanics Approach
Sandvik Coromant R&D, SE-12680 Stockholm, Sweden.
Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden.
Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory. Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden;Wigner Res Ctr Phys, Inst Solid State Phys & Opt, POB 49, H-1525 Budapest, Hungary.ORCID iD: 0000-0003-2832-3293
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2019 (English)In: ADVANCED THEORY AND SIMULATIONS, ISSN 2513-0390, Vol. 2, no 6, article id 1900035Article in journal (Refereed) Published
Abstract [en]

For many decades, the magnetic saturation of, for example, hard metals (HM) such as WC-Co-based cemented carbides, has been used as process and quality control in industry to ensure consistency of product properties. In an urge to replace cobalt as a binder phase, a demand on understanding the magnetic response as a function of composition on the atomic scale is growing. In this paper, a theoretical description of the measured weight-specific magnetic saturation of hard metals as a function of the tungsten weight fraction present in the cobalt binder phase, based on first-principle calculations, is established for standard WC-Co. The predicted magnetic saturation agrees well with the experimental one. Furthermore, it is proposed that the theoretical description can be extended to alternative and more complex binder phases which allows to transfer the production control to those hard metals.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2019. Vol. 2, no 6, article id 1900035
Keywords [en]
ab initio calculations, alternative binder, Co substitution, hard metal, magnetic saturation
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-387919DOI: 10.1002/adts.201900035ISI: 000470158200009OAI: oai:DiVA.org:uu-387919DiVA, id: diva2:1332012
Funder
Swedish Research CouncilSwedish Foundation for Strategic Research Carl Tryggers foundation The Swedish Foundation for International Cooperation in Research and Higher Education (STINT)Available from: 2019-06-27 Created: 2019-06-27 Last updated: 2019-06-27Bibliographically approved

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Vitos, Levente

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