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DYNA
versão impressa ISSN 0012-7353versão On-line ISSN 2346-2183
Resumo
PENA, DARIO et al. EXPERIMENTAL EVALUATION OF CORROSION RESISTANCE OF AN AISI - SAE 4140 STEEL IMPLANTED WITH NITROGEN IONS. Dyna rev.fac.nac.minas [online]. 2009, vol.76, n.159, pp.43-52. ISSN 0012-7353.
The corrosion resistance of AISI SAE 4140 steel implanted with nitrogen ions was studied by using the technique 3DII (Three Dimensional ion implantation). Different roughness of the samples implanted by electrochemical techniques as Rp, EIS and Tafel in a 3% NaCl brine, were evaluated, obtaining the best corrosion resistance for the material implanted with lower roughness. There was the formation of a possible protective layer stable with the immersion of the samples in the electrolyte for experimental time above 240 hours.
Palavras-chave : Three-dimensional ionic implantation; corrosion; roughness; steel AISI-SAE 4140.