FRANCISCO AMBROZIO FILHO
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Resumo IPEN-doc 11069 Carbide size and bend strength of M3-2 high speed tool steels2005 - ARAUJO FILHO, O.O.; RIBEIRO, O.C.S.; NOGUEIRA, R.A.; LIBERATI, J.F.; MUNIZ, L.F.; AMBROZIO FILHO, F.Resumo IPEN-doc 08232 The performance of high speed steel curring tools prepared from conventional steel AiSi M-2 and PM steel AiSi T-151999 - RIBEIRO, O.C.S.; AMBROZIO FILHO, F.; NOGUEIRA, R.A.; LIMA, L.F.; NEVES, M.D.; BOEHS, L.; FUNARO, R.Artigo IPEN-doc 12600 Propriedades dos acos rapidos AISI M3:2 produzidos por metalurgia convencional e tecnicas de metalurgia do po2006 - ARAUJO FILHO, O.O.; RIBEIRO, O.C.S.; NOGUEIRA, R.A.; NEVES, M.D.M.; MUNIZ, L.F.; AMBROZIO FILHO, F.Artigo IPEN-doc 10519 Sinterizacao do aco rapido ao molibdenio AISI M3:22004 - ARAUJO FILHO, O.O.; NEVES, M.D.M.; RIBEIRO, O.C.S.; DESIMONE, D.; NOGUEIRA, R.A.; AMBROZIO FILHO, F.Artigo IPEN-doc 09714 Influence of the heat treatment on the microstructure of AISI T15 high speed steel2001 - NOGUEIRA, R.A.; RIBEIRO, O.C.S.; NEVES, M.D.M.; LIMA, L.F.C.P.; AMBROZIO FILHO, F.; FRIEDRICH, D.; BOEHS, L.Artigo IPEN-doc 09712 Influence of sharpening and coating operations on the wear of sintered high speed steel tools2001 - BOEHS, L.; FRIEDRICH, D.N.; CALDEIRA, P.F.; AMBROZIO FILHO, F.; LIMA, L.F.C.P.; NEVES, M.D.M.; RIBEIRO, O.C.S.; NOGUEIRA, R.A.Artigo IPEN-doc 10107 Effect of heat treatment on microstructure of commercial and vacuum sintered high speed steels AISI M2 and T152003 - NOGUEIRA, R.A.; RIBEIRO, O.C.S.; NEVES, M.D.M.; SALGADO, L.; AMBROZIO, F.F.The effect of quenching heat treatments on the microstructure of cast and worked commercial steel AISI M2 and hot isostatically pressed as well as IPEN vacuum sintered AISI T15 have been studied. The quenching treatments were carried out from 1160, 1185, 1210 and 1235°C. The average grain size, volume fraction and average size of the primary carbides M6C and MC were determined by scanning electron microscopy and by using the digital image analysis method "Quantikov". An increase in average austenite grain size with increase in quenching temperature was observed for the AISI M2 commercial steel and vacuum sintered specimens. In the case of the AISI T15 steel specimens, increase in quenching temperature did not result in an increase in average grain size, both for the commercial and the vacuum sintered steels. The average size and volume fraction of M6C and MC carbides remained unaltered with increase in quenching temperature.Artigo IPEN-doc 08191 Microstructural evaluation of AISI T-15 high speed steel1999 - NOGUEIRA, R.A.; AMBROZIO FILHO, F.; LIMA, L.F.C.P.; RIBEIRO, O.C.S.; NEVES, M.D.M.; BOEHS, L.; FUNARO, R.Artigo IPEN-doc 07964 Metalurgia do po empregada na fabricacao de ferramentas de aco rapido2000 - BOEHS, L.; FRIEDRICH, D.; AMBROZIO FILHO, F.; LIMA, L.F.C.P.; NEVES, M.D.M.; RIBEIRO, O.C.S.; NOGUEIRA, R.A.Artigo IPEN-doc 07425 Avaliacao da resistencia ao desgaste dos acos rapidos AISI M2 e T151998 - AMBROZIO FILHO, F.; LIMA, L.F.C.P.; NEVES, M.D.M.; RIBEIRO, O.C.S.; NOGUEIRA, R.A.; BOEHS, L.; FUNARO, R.