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Understanding Quality Control of Hard Metals in Industry - A Quantum Mechanics Approach
Sandvik Coromant R&D, SE-12680 Stockholm, Sweden..
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Tillämpad materialfysik.
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Tillämpad materialfysik.
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Tillämpad materialfysik. Uppsala Univ, Div Mat Theory, Dept Phys & Astron, POB 516, SE-75120 Uppsala, Sweden.;Wigner Res Ctr Phys, Inst Solid State Phys & Opt, POB 49, H-1525 Budapest, Hungary..ORCID-id: 0000-0003-2832-3293
Vise andre og tillknytning
2019 (engelsk)Inngår i: Advanced Theory and Simulations, ISSN 2513-0390, Vol. 2, nr 6, artikkel-id 1900035Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
Wiley-VCH Verlagsgesellschaft, 2019. Vol. 2, nr 6, artikkel-id 1900035
Emneord [en]
ab initio calculations, alternative binder, Co substitution, hard metal, magnetic saturation
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-254083DOI: 10.1002/adts.201900035ISI: 000470158200009OAI: oai:DiVA.org:kth-254083DiVA, id: diva2:1330255
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QC 20190625

Tilgjengelig fra: 2019-06-25 Laget: 2019-06-25 Sist oppdatert: 2019-06-25bibliografisk kontrollert

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