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Mechanical and electrochemical deterioration mechanisms in the tribocorrosion o...
Vieira, A. C.; Rocha, L. A.; Papageorgiou, Nikolaos; Mischler, S.Tribocorrosion of Al-Si-Cu-Mg alloys was investigated in 0.05 M NaCl and 0.1 M NaNO3 solutions under severe sliding and controlled electrochemical conditions. A simple galvanic coupling model was developed to analyze and quantitatively predict the evolution potential of the open circuit potential during tribocorrosion. According to this model and the obtained results, galvanic coupling was established in the Na...
Influence of SiC reinforcement particles on the tribocorrosion behaviour of Al–...
Vieira, A. C.; Rocha, L. A.; Mischler, S.The main aim of this work was to study and understand the influence of SiC particles on the corrosion and tribocorrosion of Al-matrix composite materials. For that, Al–SiCp functionally graded composites were produced by centrifugal casting and different SiCp contents were achieved. Their mechanical properties were improved by age-hardening heat treatments. The tribocorrosion behaviour was studied in 0.05M NaCl...
Effect of Al2Cu precipitates size and mass transport on the polarisation behavi...
Vieira, A. C.; Pinto, A. M.; Rocha, L. A.; Mischler, S.The electrochemical behaviour of age-hardened Al–Si–Cu–Mg alloys was investigated in a 0.05 M NaCl solution under controlled mass transport conditions using a rotating disk electrode. This work aimed at getting better understanding of the effect of the alloy microstructure, in particular the size distribution of Al2Cu phase, on the corrosion behaviour of the alloy. Three different size distributions of the Al2C...
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