The influence of deformation on the product performance of pre-coated packaging steels

Recent developments in various countries have led to the development of new types of polymer coated packaging steel. These materials behave differently in production and end use and are therefore subject of extensive studies. The aim of this research is to understand the influence of deformation of pre-coated packaging steel sheet on real can...

The role of magnesium in the electrochemical behaviour of 5XXX aluminium-magnesium alloys

An investigation concerning the effects of magnesium on the intergranular corrosion susceptibility of AA5XXX aluminium alloys was carried out. In the present work, magnesium is found to be highly mobile in the bulk metal as well as in the aluminium oxide. This mobility is also found to be dependent on the temperature and bulk magnesium...

Polypyrrole electrochemistry: Environmentally friendly corrosion protection of steel: (im)possibilities

Chromate compounds have been widely used to improve the corrosion protection of galvanised steel and aluminium objects in the past decades. The hexavalent chromium in chromate enhances the adherence of coatings to galvanised steel and aluminium. Additionally, if the passive layers on these materials should become damaged, hexavalent chromium...

Cr(VI) and Cr(III)-Based Conversion Coatings on Zinc

With the aims of understanding the protective mechanism of chromate conversion coatings and developing alternatives to chromate treatments, the physical natures and corrosion properties of Cr(VI) and Cr(III) treated zinc have been investigated in this work. The Cr(VI) treatments were carried out in dichromate and sulfuric acid solution with...

Local electrochemical behaviour of 7xxx aluminium alloys

Aluminium alloys of the 7xxx series (Al-Zn-Mg-Cu) are susceptible to localized types of corrosion like pitting, intergranular corrosion and exfoliation corrosion. This represents a limitation for the application of these alloys in the aerospace components because localized corrosion might have a negative effect on safety and costs. This PhD...

Microstructure-related quality of conversion coatings on aluminium alloys, Microstructuur-gecorreleerde eigenschappen van conversielagen op aluminium legeringen