Effect of nozzle-length, powder feed-rate and spray distance on HIPOJET® 2700 HVOF sprayed Cr3C2-NiCr coatings.

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dc.contributor.author Matthews, Steven en
dc.contributor.author Woo, J en
dc.contributor.author Daniel, J en
dc.coverage.spatial Düsseldorf, Germany en
dc.date.accessioned 2017-09-08T02:38:00Z en
dc.date.issued 2017-06-08 en
dc.identifier.citation International Thermal Spray Conference & Exposition; ITSC 2017, Düsseldorf, Germany, 07 Jun 2017 - 09 Jun 2017. DVS German Welding Society. 08 Jun 2017 en
dc.identifier.uri http://hdl.handle.net/2292/35572 en
dc.description.abstract The high wear resistance of Cr3C2-NiCr coatings is reliant on the formation of a dense coating containing a high percentage of carbide grains, with minimal carbide degradation. Such coating characteristics are typically achieved through the use of high velocity oxygen fuel (HVOF) spraying. The propane fuelled, manually operated HIPOJET 2700 HVOF system is one of a suite of smaller sized commercial HVOF systems recommended for smaller job shops. However, few works have characterised the properties of carbide composite coatings produced with this system. In this work a full factorial design of experiment analysis was used to assess the effect of key operating parameters on the quality of Cr3C2-NiCr coatings. The combustion parameters (fuel and oxygen flows) were fixed at the manufacturers recommended settings in order to focus on the effect of nozzle length, powder feed rate and, spray distance. The effect of these variables on the porosity/oxide content, carbide content, microhardness, coating thickness, and relative deposit efficiency is discussed. en
dc.description.uri https://www.dvs-ev.de/call4papers/index.cfm?vid=85&id=5 en
dc.publisher DVS German Welding Society en
dc.relation.ispartof International Thermal Spray Conference & Exposition; ITSC 2017 en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Effect of nozzle-length, powder feed-rate and spray distance on HIPOJET® 2700 HVOF sprayed Cr3C2-NiCr coatings. en
dc.type Conference Item en
dc.rights.holder Copyright: DVS German Welding Society en
pubs.finish-date 2017-06-09 en
pubs.start-date 2017-06-07 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Conference Paper en
pubs.elements-id 635164 en
pubs.org-id Engineering en
pubs.org-id Chemical and Materials Eng en
pubs.record-created-at-source-date 2017-07-06 en

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