Tribological properties of Ti(Al,O)/Al2O3 composite coating by thermal spraying

Show simple item record Salman, A en Gabbitas, B en Cao, Peng en Zhang, DL en 2011-12-18T21:18:37Z en 2009 en
dc.identifier.citation International Journal of Modern Physics B 23(6-7):1407-1412 2009 en
dc.identifier.issn 0217-9792 en
dc.identifier.uri en
dc.description.abstract The use of thermal spray coatings provides protection to the surfaces operating in severe environments. The main goal of the current work is to investigate the possibility of using a high velocity air fuel (HVAF) thermally sprayed wear resistant Ti(Al,O)/Al2O3 coating on tool steel (H13) which is used for making dies for aluminium high pressure die casting and dummy blocks aluminium extrusion. A feedstock of Ti(Al,O)/Al2O3 composite powder was produced from a mixture of Al and TiO2 powders by high energy mechanical milling, followed by a thermal reaction process. The feedstock was then thermally sprayed using a high velocity air-fuel (HVAF) technique onto H13 steel substrates to produce a composite coating. The present study describes and compares the tribological properties such as friction and sliding wear rate of the coating both at room and high temperature (700 ο C). The wear resistance of the coating was investigated by a tribometer using a spherical ended alumina pin as a counter body under dry and lubricating conditions. The results showed that composite coating has lower wear rate at high temperature than at room temperature without using lubricant.The composite coating was characterized using scanning electron microscopy (SEM), optical microscopy and X-ray diffractometry (XRD). This paper reports the experimental observations and discusses the wear resistance performance of the coatings at room and high temperatures. en
dc.publisher World Scientific Publishing Company en
dc.relation.ispartofseries International Journal of Modern Physics B 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. Details obtained from en
dc.rights.uri en
dc.title Tribological properties of Ti(Al,O)/Al2O3 composite coating by thermal spraying en
dc.type Journal Article en
dc.identifier.doi 10.1142/S0217979209061019 en
pubs.issue 6-7 en
pubs.begin-page 1407 en
pubs.volume 23 en
dc.rights.holder Copyright: World Scientific Publishing Company en
pubs.end-page 1412 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 92989 en Engineering en Chemical and Materials Eng en
pubs.record-created-at-source-date 2010-09-01 en

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