MARCO ANTONIO COLOSIO
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Artigo IPEN-doc 29910 Obtention of hard coating using electrochemical process in aluminum-silicon alloys for automotive vehicles2023 - SILVA, P.R.C.; COLOSIO, M.A.; ORLANDO, M.T.D.; ROSSI, J.L.Automotive industry is searching for new ways to improve vehicles’ energy efficiency through mass reduction, using aluminum alloys. This change requires a surface protection to extend the life cycle of the components and aluminum anodization is the most used solution. This research is focused on the intake and exhaust ducts’ surfaces of aluminum internal combustion engines cylinder head, which are subject to chemical agents and temperature variation. To extend the working life of this component it is necessary to obtain a covering protective layer. The process targeted the anodization of an internal surface of a much larger part of a cast aluminum-silicon alloy cylinder head. The anodization was obtained using a H2SO4 solution (184 g.L-1) and a DC voltage starting at 20 V. The Al2O3 layer obtained, inside the cylinder head´s ducts, has an average thickness of 120 μm in accordance with the proposal of providing a suitable surface protection.Artigo IPEN-doc 22125 Avaliação das tensões residuais do processo de fundição no comportamento físico de um disco de freio2015 - TIRELLI, MARCELO A.; COLOSIO, MARCO A.; STUEWE, LUCIANA; ROLA, FABIO; ROSSI, JESUALDO L.Resumo IPEN-doc 17975 Residual stresses measurements using strin gages applied to aluminium wheels2011 - CEONI, F.C.; SANTOS, J.C.; COLOSIO, M.A.; CARMIGNOTTO, M.A.P.; PEREIRA, A.A.P.; SOUZA, A.C.; ROSSI, J.L.Resumo IPEN-doc 12492 Evaluation of processes controls sintered parts - shim case study2007 - ROSSI, J.L.; SALGADO, L.; COLOSIO, M.A.Artigo IPEN-doc 11076 Sintered valve inserts-microstructural characterisation2005 - JESUS FILHO, E.S.; JESUS, E.R.B.; SALGADO, L.; JESUS, S.L.; COLOSIO, M.A.; SANTOS, J.C.; YOSHIDA, S.; SARTORI, C.H.; ROSSI, J.L.Artigo IPEN-doc 10919 Avancos tecnologicos de celulas a combustivel com emprego de etanol2004 - FRANCO, E.G.; LINARDI, M.; COLOSIO, M.A.Artigo IPEN-doc 09501 Crystallographic orientation study of spray formed hypereutectic Al-Si alloys used in the automotive industry2003 - SANTOS, H.O.; LIMA, N.B.; COSTA, I.; ROSSI, J.L.; SANTOS, J.C.; COLOSIO, M.A.Artigo IPEN-doc 18681 Residual stresses measurements using strain gages - aluminium wheels2012 - CIONE, F.C.; ROSSI, J.L.; SOUZA, A.C.; DELIJAICOV, S.; COLOSIO, M.A.Artigo IPEN-doc 14179 Sintered valve seat inserts - Micorstructural characterisation2006 - JESUS FILHO, E.S.; JESUS, E.R.B.; SALGADO, L.; JESUS, S.L.; COLOSIO, M.A.; SANTOS, J.C.; YOSHIDA, S.; SARTORI, C.H.; ROSSI, J.L.