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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Tribological response of fresh and used engine oils: The effect of surface texturing, roughness and fuel type

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Autor(es):
Cousseau, Tiago [1] ; Ruiz Acero, Juan Sebastian [1] ; Sinatora, Amilton [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, LFS Lab Surface Phenomena, Av Prof Mello Moraes 2231, BR-05508970 Sao Paulo, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: TRIBOLOGY INTERNATIONAL; v. 100, n. SI, p. 60-69, AUG 2016.
Citações Web of Science: 8
Resumo

Smooth and rough anisotropic surfaces were used to evaluate the influence of surface roughness and texture on the in situ formation of MoS2 from MoDTC in reciprocating sliding tribotests. In order to also assess the influence of the fuel type contamination (gasoline and ethanol) on the oil properties and tribological performance, the experiments were carried out with an additive free base oil and with a fully formulated 5W30-SM engine oil, as new and after running in dynamometers tests fuelled with ethanol and gasoline. Both texture and fuel types were shown to influence the friction coefficient and wear by changing the tribofilm formation. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 09/54891-8 - Desafios tribológicos em motores flex-fuel
Beneficiário:Roberto Martins de Souza
Linha de fomento: Auxílio à Pesquisa - Programa BIOEN - PITE