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Relationships between process parameters, microstructure, and adhesion strength of HVOF sprayed IN718 coatings
University West, Department of Engineering Science, Division of Production Engineering. (PTW)ORCID iD: 0000-0002-6929-3310
University West, Department of Engineering Science, Division of Production Engineering. (PTW)ORCID iD: 0000-0001-7787-5444
Volvo Aero Corporation, Trollhättan.
2011 (English)In: Journal of Thermal Spray Technology, Vol. 20, no 1-2, p. 76-82Article in journal (Refereed) Published
Abstract [en]

Fundamental understanding of relationships between process parameters, particle in-flight characteristics, and adhesion strength of HVOF sprayed coatings is important to achieve the high coating adhesion that is needed in aeronautic repair applications. In this study, statistical Design of Experiments (DoE) was used to identify the most important process parameters that influence adhesion strength of IN718 coatings sprayed on IN718 substrates. Special attention was given to the parameters combustion ratio, total gas mass flow, stand-off distance and external cooling, since these parameters were assumed to have a significant influence on particle temperature and velocity. Relationships between these parameters and coating microstructure were evaluated to fundamentally understand the relationships between process parameters and adhesion strength. © 2010 ASM International.

Place, publisher, year, edition, pages
2011. Vol. 20, no 1-2, p. 76-82
Keywords [en]
adhesion strength, Design of Experiments, HVOF, Inconel 718 coating, microstructure
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-2994ISBN: 10599630 (ISSN) (print)OAI: oai:DiVA.org:hv-2994DiVA, id: diva2:387113
Available from: 2011-01-13 Created: 2011-01-12 Last updated: 2016-02-11Bibliographically approved

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Lyphout, ChristopheNylén, Per

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