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The nanostructure and microstructure of steels: Electrochemical Tafel behaviour...
Alves, Valéria A.; Paquim, Ana M. Chiorcea; Cavaleiro, Albano; Brett, Christopher M.A.The influence of chemical composition and heat treatment on a low-carbon steel, chromium steel and high speed steel has been examined by polarisation curves and electrochemical parameters deduced from the Tafel plots. The electrochemical corrosion resistance, which is small between the as-received steels become greater after heat treatment, following the order: carbon steel < chromium steel ~ high speed ste...
Electrochemical corrosion of magnetron sputtered WTiN-coated mild steels in a c...
Alves, Valéria A.; Brett, Christopher M. A.; Cavaleiro, AlbanoThe electrochemical corrosion behaviour of WTiN coatings, of composition W 31, Ti 28 and N 40 at.% sputtered on carbon steel, chromium steel and high speed steel (HSS) has been investigated and the effect of the steel heat treatment on the steel/WTiN system performance explored. Open circuit potential measurements, polarisation curves and electrochemical impedance spectroscopy were used, together with X-ray dif...
Influence of alloying on the passive behaviour of steels in bicarbonate medium
Alves, Valéria A.; Brett, Christopher M. A.http://www.sciencedirect.com/science/article/B6TWS-45626G2-3/1/2e6023fd4790b792f8a205b584e0bd02
Characterisation of passive films formed on mild steels in bicarbonate solution...
Alves, Valéria A.; Brett, Christopher M. A.Passive films formed anodically on carbon steel, chromium steel and high speed steel (HSS) in 0.5 M NaHCO3 and in 0.5 M NaHCO3+0.01 M KCl have been characterised by electrochemical impedance spectroscopy (EIS). Carbon steel presents a wide passive anodic region (0.0-0.9 V vs. saturated calomel electrode (SCE)), while those of chromium steel and HSS, either as-received or heat-treated, are narrower because of tr...
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