Plasma Nitriding of 90CrMoV8 Tool Steel for the Enhancement of Corrosion Resistance
TypeArticles dans des revues avec comité de lecture
In the present studies, efforts were made to improve corrosion resistance of 90CrMoV8 tool steel by following plasma nitriding. Plasma nitriding of this steel at 500 oC for6and 8 h significantly improved the corrosion resistance when compared to the as-received steel. X-ray diffraction reveals γ′ (Fe, Cr)4 N) and ε ((Fe, Cr) 2–3 N) phases formed after nitriding. Potentiodynamic polarization tests in 3.5% NaCl reveal that plasma nitriding significantly improved the corrosion resistance as compared to untreated steel. The improvement in corrosion resistance may be attributed to the N solid solution and the presence of Fe-nitrides formed in the compound layer
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NOUVEAU, Corinne; STEYER, Philippe; MOHAN RAO, Kumar Ram; LAGADRILLERE, Denis (Elsevier, 2011)The aim of the study is to apply a plasma nitriding process to the 90CrMoV8 steel commonly employed in wood machining, and to determine its efficiency to improve both mechanical and electrochemical properties of the surface. ...
RAM MOHAN RAO, K.; NOUVEAU, Corinne; TRINADH, Kalimi (Elsevier BV, 2019)The present concerns surface modification of low alloy CrMoV steel by following the route of plasma nitriding for the improvement of hardness. Plasma nitriding was performed at a low temperature of 450 oC. The maximum ...
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