Corrosion Resistance and Protection Mechanism of Hot-dip Zn-Al-Mg Alloy Coated Steel Sheetunder Accelerated Corrosion Environment

Effect of Mg on the Microstructure and Corrosion Resistance of the Continuously Hot-Dip Galvanizing Zn-Mg Coating

The microstructure of continuously hot-dip galvanizing Zn-Mg coating was investigated in order to obtain the mechanism of the effects of Mg on the corrosion resistance. In this paper, the vertical section of the Zn-0.20 wt % Al-Mg ternary phase diagram near the Al-low corner was calculated. The results indicates that the phase composition of the Zn-0.20 wt % Al-Mg ternary phase diagram near the...

CORROSION BEHAVIOUR OF Al-Li-Cu-Mg ALLOY 8090-T651

Corrosion Protection of Steel Using Nonanomalous Ni-Zn-P Coatings

A novel technique for obtaining nonanomalous Ni-Zn-P coatings with high Ni content ~74 wt % as compared to 15-20 wt % in the conventional plating method! has been developed. These coatings show promise as a replacement for Cd in sacrificially protecting steel. Ni-Zn-P coatings were deposited using an electroless method from a solution containing NiSO4 , complexing agent and ammonium chloride. V...

Cut-edge corrosion study on Al-rich metallic coated steel

Aluminium additions to metallic coatings on steel substrates have been accepted as a successful solution versus the standard zinc based coatings. The development of these products responds to the market’s demand of more versatile products, which faces the leaching effect of zinc and the rising cost of obtaining this element, among the main advantages. However, these materials show a special sen...

Improve sensitization and corrosion resistance of an Al-Mg alloy by optimization of grain boundaries

The sensitization and subsequent intergranular corrosion of Al-5.3 wt.% Mg alloy has been shown to be an important factor in stress corrosion cracking of Al-Mg alloys. Understanding sensitization requires the review of grain boundary character on the precipitation process which can assist in developing and designing alloys with improved corrosion resistance. This study shows that the degree of ...