Perpendicular Weak Permanent Magnetic Field Effect on the Electrodeposited Nanostructured ZnO Film and its Kinetic Corrosion Behavior

Protection of Metals and Physical Chemistry of Surfaces - In this work the effect of the permanent weak magnetic field on the electrodeposited ZnO nanostructured film on the ITO substrate...     

Investigation of nickel deposition onto section and central longitudinal surfaces of AA1370 aluminum electrical wire with and without a weak permanent magnetic field

In this work a special regard is given to the morphology of the nickel deposited layers, onto AA1370 aluminum section and central longitudinal surfaces, with and without a weak magnetic field oriented in parallel and perpendicular to the coated surface in modified Watt bath. The obtained results show the formation of honeycomb structure nickel deposits for samples treated with weak parallel oriented field under approximately 0.3 A/cm₂, and partial dendritic structure nickel deposit for samples treated with weak perpendicular oriented magnetic field, the perimeter deposits with and without magnetic field is different to the deposits in the remain surface. We attributed the defect of nickel deposits on the surfaces with and without magnetic field to the distribution of the intermetallics particles and we attributed the honeycomb structure to the escapement of hydrogen and oxygen.     

Relation Between Mechanical Instabilities and Corrosion Sensitivity of Aluminum Body Cans Surfaces

Protection of Metals and Physical Chemistry of Surfaces - In this work we investigated the mechanical and corrosion behavior of aluminum can bodies. The results obtained show homogeneous...     

Corrosion Behavior of Shiny Side and Dull Side of Aluminum Foil in 0.3% Wt NaCl Non Agitated Solution: Appearance of Rhombus form Corrosion Morphology

Protection of Metals and Physical Chemistry of Surfaces - We have investigated the corrosion behavior of shiny and dull faces of aluminum household foil in 0.3 wt % NaCl nonagitated solution. The...     

Dissolution of Ag/AgCl Reference Electrode and Deposition of Silver Onto the Surface of 5083 H321 Aluminum Alloy,During Corrosion in 3 wt % NaCl Solution at Rest Potential

Protection of Metals and Physical Chemistry of Surfaces - The dissolution of Ag/AgCl reference electrode and deposition of silver onto 5083-H321 aluminum alloy in 3 wt % NaCl solution have been...     

Corrosion behavior on the different zones of AA2014 welded aluminum alloy by AA5554 filler aluminum alloy with TIG process: Before and after solution heat treatments followed by ageing

In this work, we have studied the effects of solution heat treatment followed by ageing on the corrosion behavior of AA2014 aluminum alloy welded by AA5554 aluminum alloy. Two samples are then analyzed, in the first case the solution heat treatment is followed by quenching and natural ageing of 90 days (sample 1), and in the second one, the solution heat treatment is followed by quenching and artificial ageing of twelve hours at 190°C (sample 2). The principal observations can be summarized as: evaporation of magnesium in fusion zone, and diffusion of magnesium and copper from the heat affected zone to the fusion zone were identified. Solution heat treatment, quenching and 90 days of natural ageing leads to a uniform corrosion in the heat affected zone and in the fusion one, when the material is immersed for ten seconds in Keller reagent solution. After immersion in 0.3% NaCl chloride solution, and after solution treatment and quenching, we observed that applied artificial ageing at 190°C causes localized corrosion surrounding precipitates and then develops uniform corrosion in all zones, particularly in the fusion one. Finally, it is noted that the surface of different zones became nobler after applying solution heat treatment followed by natural ageing.