Corrosion and tribocorrosion behaviour of Al-Si-Cu-Mg alloy and its composites reinforced with B4C particles in 0.05M NaCl solution

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorToptan, F.
dc.creatorAlves, A. C.
dc.creatorKerti, I.
dc.creatorAriza, E.
dc.creatorRocha, Luís Augusto Sousa Marques da
dc.date2014-05-27T11:30:30Z
dc.date2016-10-25T18:53:03Z
dc.date2014-05-27T11:30:30Z
dc.date2016-10-25T18:53:03Z
dc.date2013-08-30
dc.date.accessioned2017-04-06T02:36:26Z
dc.date.available2017-04-06T02:36:26Z
dc.identifierWear, v. 306, n. 1-2, p. 27-35, 2013.
dc.identifier0043-1648
dc.identifierhttp://hdl.handle.net/11449/76363
dc.identifierhttp://acervodigital.unesp.br/handle/11449/76363
dc.identifier10.1016/j.wear.2013.06.026
dc.identifierWOS:000328721300005
dc.identifier2-s2.0-84880683109
dc.identifierhttp://dx.doi.org/10.1016/j.wear.2013.06.026
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/897063
dc.descriptionThe corrosion behaviour of metal matrix composites (MMCs) is strictly linked with the presence of heterogeneities such as reinforcement phase, microcrevices, porosity, secondary phase precipitates, and interaction products. Most of the literature related to corrosion behaviour of aluminium matrix composites (AMCs) is focused on SiC reinforced AMCs. On the other hand, there is very limited information available in the literature related to the tribocorrosion behaviour of AMCs. Therefore, the present work aims to investigate corrosion and tribocorrosion behaviour of Al-Si-Cu-Mg alloy matrix composites reinforced with B4C particulates. Corrosion behaviour of 15 and 19% (vol) B4C reinforced Al-Si-Cu-Mg matrix composites and the base alloy was investigated in 0.05M NaCl solution by performing immersion tests and potentiodynamic polarisation tests. Tribocorrosion behaviour of Al-Si-Cu-Mg alloy and its composites were also investigated in 0.05M NaCl solution. The tests were carried out against alumina ball using a reciprocating ball-on-plate tribometer. Electrochemical measurements were performed before, during, and after the sliding tests together with the recording of the tangential force. Results suggest that particle addition did not affect significantly the tendency of corrosion of Al-Si-Cu-Mg alloy without mechanical interactions. During the tribocorrosion tests, the counter material was found to slide mainly on the B4C particles, which protected the matrix alloy from severe wear damage. Furthermore, the wear debris were accumulated on the worn surfaces and entrapped between the reinforcing particles. Therefore, the tendency of corrosion and the corrosion rate decreased in Al-Si-Cu-Mg matrix B4C reinforced composites during the sliding in 0.05M NaCl solution. © 2013 Elsevier B.V.
dc.languageeng
dc.relationWear
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCorrosion-wear
dc.subjectMetal-matrix composite
dc.subjectWear testing
dc.subjectAluminium matrix composites
dc.subjectElectrochemical measurements
dc.subjectMechanical interactions
dc.subjectReinforced composites
dc.subjectReinforcement phase
dc.subjectReinforcing particles
dc.subjectWear-testing
dc.subjectAlloys
dc.subjectAlumina
dc.subjectAluminum
dc.subjectCopper alloys
dc.subjectCorrosion rate
dc.subjectCorrosive effects
dc.subjectElectrochemical corrosion
dc.subjectMetal testing
dc.subjectParticle reinforced composites
dc.subjectReinforcement
dc.subjectSilicon
dc.subjectSilicon carbide
dc.subjectTesting
dc.subjectMetallic matrix composites
dc.titleCorrosion and tribocorrosion behaviour of Al-Si-Cu-Mg alloy and its composites reinforced with B4C particles in 0.05M NaCl solution
dc.typeOtro


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