Study of the steady-state of wear in micro-abrasive wear tests by rotative ball conducted on specimen of WC-co P20 and M2 tool-steel Estudo da obtenção do regime permanente de desgaste em ensaios de desgaste micro-abrasivo por esfera rotativa conduzidos em corpos-de-prova de WC-co P20 e aço-ferramenta M2

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dc.contributor.authorCozza R.C.
dc.date.accessioned2019-08-20T00:13:08Z
dc.date.available2019-08-20T00:13:08Z
dc.date.issued2018
dc.description.abstract© 2018, Universidade Federal do Rio de Janeiro. All rights reserved.Since its introduction to scientific community of tribologists, the micro-abrasive wear test by rotative ball has been adopted by renowned universities and research centers. In this type of experiment, an important tribological phenomenon that must be observed and considered is related to the attainment of the Steady-State of Wear, characterized by stabilization of the coefficient of wear as a function of the test time. In this context, the purpose of this work was to evaluate the attainment of the Steady-State of Wear in specimens of WC-Co P20 and M2 tool-steel, during micro-abrasive wear tests by rotative ball. Completing the tribological system, have been used spheres of AISI 52100 steel and an abrasive slurry prepared with black silicon carbide (SiC) and distilled water. One value of normal force and different values of test times have been defined and, during the experiments, the abrasive slurry has been continuously agitated and dropped between the sphere and the specimen. After testing, all wear craters generated have been analysed by optical microscopy, in order to measure the respective diameters and verify the micro-abrasive wear modes acting on their surfaces. For the established test conditions, it was observed that the Steady-State of Wear has been obtained with the speci- men of WC-Co P20, due to the constant behaviour of the coefficient of wear along the test time; however, the Steady-State of Wear has not been obtained for the M2 tool-steel, in which has been observed the variation of the coefficient of wear as a function of the test time. Finally, in this study also has been concluded that the Steady-State of Wear is not a property of the material and this phenomenon is strongly dependent on the materials of the tribological system and of the imposed tests conditions.
dc.description.firstpagee-11986
dc.description.issuenumber1
dc.description.volume23
dc.identifier.citationCOZZA, Ronaldo Câmara. Estudo da obtenção do Regime Permanente de Desgaste em ensaios de desgaste micro-abrasivo por esfera rotativa conduzidos em corpos-de-prova de WC-Co P20 e aço-ferramenta M2. Materia-Rio de Janeiro, v. 23, n. 1, p. e-11986, 2018.
dc.identifier.doi10.1590/s1517-707620170001.0322
dc.identifier.issn1517-7076
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/1900
dc.relation.ispartofRevista Materia
dc.rightsAcesso Aberto
dc.subject.otherlanguageGrooving abrasion
dc.subject.otherlanguageMicro-abrasive wear
dc.subject.otherlanguageRolling abrasion
dc.subject.otherlanguageSteady-State of Wear
dc.titleStudy of the steady-state of wear in micro-abrasive wear tests by rotative ball conducted on specimen of WC-co P20 and M2 tool-steel Estudo da obtenção do regime permanente de desgaste em ensaios de desgaste micro-abrasivo por esfera rotativa conduzidos em corpos-de-prova de WC-co P20 e aço-ferramenta M2
dc.typeArtigo
fei.scopus.citations13
fei.scopus.eid2-s2.0-85043352717
fei.scopus.updated2024-08-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85043352717&origin=inward
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