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High entropy alloy binders in gradient sintered hardmetal
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2018 (English)In: International Journal of Refractory Metals and Hard Materials, ISSN 0263-4368, Vol. 71, p. 217-220Article in journal (Refereed) Published
Abstract [en]

High Entropy Alloys (HEAs) are a new group of multicomponent alloys showing great potential as bulk alloys in many fields, and their high temperature strength is especially of interest. In previous work (D. Linder, M.Sc Thesis "High Entropy Alloys - Alternative binders in cemented carbides", Linkoping University, Sweden (2015)) we have shown the possibility to produce cemented carbides with HEA-binders using standard powder metallurgical methods. The present work investigates the possibility to produce gradient sintered cemented carbides using HEA-binders. The materials are analyzed with regards to gradient depth, phases formed, phase composition and carbide grain size. The gradient formation is investigated with respect to C-content and sintering process and the results are showing the possibility to form industrially relevant gradient depths using standard methods. These results open up a whole new range of possible applications for these materials and show the potential for future design of a wide composition range of alternative binders.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 71, p. 217-220
Keywords [en]
High entropy alloy, Cemented carbide, Alternative binder, Gradient sintering
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-223267DOI: 10.1016/j.ijrmhm.2017.11.030ISI: 000424068400029Scopus ID: 2-s2.0-85034948514OAI: oai:DiVA.org:kth-223267DiVA, id: diva2:1183371
Note

QC 20180216

Available from: 2018-02-16 Created: 2018-02-16 Last updated: 2018-02-16Bibliographically approved

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