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Screening design of hard metal feedstock powders for supersonic air fuel processing
University West, Department of Engineering Science, Division of Production Engineering. (PTW)ORCID iD: 0000-0002-6929-3310
Fujimi Incorporated, Japan.
2014 (English)In: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 258, no 15 November, 447-457 p.Article in journal (Refereed) Published
Abstract [en]

Replacement of Electrolytic Hard Chromium (EHC) method by Thermal Spray Technology has shown a growing interest the past decades, mainly pioneered by depositing WC-based material by conventional HVOF processes. Lower thermal energy and higher kinetic energy of sprayed particles achieved by newly-developed Supersonic Air Fuel system, so-called HVAF-M3, significantly reduces decarburization, and increases wear and corrosion resistance properties, making HVAF-sprayed coatings attractive both economically and environmentally. In the present work, a first order process map has been intended via a full factorial Design of Experiments (DoE) to establish relationships between powder feedstock characteristics, such as primary carbides grain size, binder grain size and powder strength, and coatings microstructure and mechanical properties. A second order process map was then established to study possible correlations between the deposit microstructural properties and their respective abrasion/erosion wear and corrosion performances.

Place, publisher, year, edition, pages
2014. Vol. 258, no 15 November, 447-457 p.
Keyword [en]
HVAF, WC-Co-Cr, abrasive wear, corrosion resistance, erosion resistance, design of experiment, carbides grain size, carbides contiguity
National Category
Materials Engineering Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-6634DOI: 10.1016/j.surfcoat.2014.08.055ISI: 000346895000055Scopus ID: 2-s2.0-84912073481OAI: oai:DiVA.org:hv-6634DiVA: diva2:746059
Note

Available online 7 September 2014

Available from: 2014-09-11 Created: 2014-09-11 Last updated: 2017-12-05Bibliographically approved

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Lyphout, Christophe

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