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Characterizations of Cu-based coated Al7075 via plasma-spray method - A wear case study

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dc.citedby1
dc.contributor.authorGhazali M.J.en_US
dc.contributor.authorMat Kamal S.E.en_US
dc.contributor.authorAbdullah S.en_US
dc.contributor.authorMisran H.en_US
dc.contributor.authorid23099803300en_US
dc.contributor.authorid36981887800en_US
dc.contributor.authorid56292893500en_US
dc.contributor.authorid6506899840en_US
dc.date.accessioned2023-12-28T07:05:45Z
dc.date.available2023-12-28T07:05:45Z
dc.date.issued2011
dc.description.abstractDespite of its poor tribological properties (low hardness and low resistance to friction, wear and abrasion as well as poor seizure resistance), aluminum has become a potential material in automotives, particularly in the engine areas. To overcome these weaknesses and increase the engine lifetime, a good surface treatment can be one of the best options. In this work, Cu-Ni alloy that has such excellent properties like ductility, corrosion and wear resistance, good electrical and thermal conductivity as well as it can be easily joined or fabricated into useful shapes, was chosen. The work aims to study the wear behavior of Cu-Ni coatings deposited on Al7075 substrates using an atmospheric plasma spray (APS) with different level of plasma powers. Lubricated wear test were carried out on a pin-on-disc tester under an applied load of 100 N with a fixed sliding speed of 0.851 ms-1 at room temperature (? 23�C). It was found that a decrease in plasma power from 40 kW to 30 kW promoted finer microstructures and higher hardness of the coatings, up to 39%. At 30 kW, the splats formation involved high degree of flattening and solidification without many splashes within the structure. At higher power (40 kW), both velocity and temperature of droplets were noted to be increased, resulting rougher coating structures which were most likely due to overlapped splats. In turn, this weakened the bonding strength between splats. In the case of wear, the resistance of Cu-Ni coated Al7075 was found to be increased from ?6 to 18 � 10-5 mm3/Nm, indicating a mild wear regime that was attributed to an increase in the coating hardness. � 2011 World Scientific Publishing Company.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1142/S0219581X11009593
dc.identifier.epage1274
dc.identifier.issue6
dc.identifier.scopus2-s2.0-82955240569
dc.identifier.spage1269
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-82955240569&doi=10.1142%2fS0219581X11009593&partnerID=40&md5=21fbf6955d6e53975d575cf29397738d
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/29597
dc.identifier.volume10
dc.pagecount5
dc.sourceScopus
dc.sourcetitleInternational Journal of Nanoscience
dc.subjectAl7075
dc.subjectcoating, plasma spray
dc.subjectCu-Ni
dc.subjectWear
dc.subjectBehavioral research
dc.subjectCoatings
dc.subjectCopper alloys
dc.subjectElectric properties
dc.subjectHardening
dc.subjectHardness
dc.subjectPlasma jets
dc.subjectPlasma spraying
dc.subjectPlasmas
dc.subjectSurface treatment
dc.subjectThermal conductivity
dc.subjectWear of materials
dc.subjectAl7075
dc.subjectApplied loads
dc.subjectAtmospheric plasma spray
dc.subjectAutomotives
dc.subjectBonding strength
dc.subjectCoating hardness
dc.subjectCoating structures
dc.subjectCorrosion and wear resistance
dc.subjectCu-based
dc.subjectCu-Ni
dc.subjectCu-Ni alloys
dc.subjectLow hardness
dc.subjectLow resistance
dc.subjectLubricated wear tests
dc.subjectMild wear
dc.subjectPin-on-disc tester
dc.subjectPlasma power
dc.subjectPotential materials
dc.subjectRoom temperature
dc.subjectSliding speed
dc.subjectTemperature of droplet
dc.subjectTribological properties
dc.subjectWear behaviors
dc.subjectWear resistance
dc.titleCharacterizations of Cu-based coated Al7075 via plasma-spray method - A wear case studyen_US
dc.typeArticleen_US
dspace.entity.typePublication
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