The effect of magnesium additions on the microstructure and cut edge corrosion resistance of zinc aluminium alloy galvanised steel

Electrochemistry and surface analysis of the effect of benzotriazole on the cut edge corrosion of galvanized steel

“…The SVET was also used by Worsley et al [25] to show that application of different organic coatings on the two sides of galvanized steel results in anodic delamination on the side with the less porous coating, due to differential aeration. Other studies are also reported in the literature, namely the effect of the thickness of the sacrificial coating or the effect of magnesium additions [26,27]. Recently, the effect of sodium phosphate on the inhibition of corrosion at the cut edge was studied with the aim of extending the lifetime of the zinc anodes; the results have shown that local anodic activity at the zinc anodes occurred for shorter periods in the presence of phosphate due to the fast precipitation of zinc phosphate at the active areas, without causing loss of cathodic protection [28].…”

Improvement the Corrosion Resistance for the Galvanized Steel by Adding Sn

“…The synergy of the excellent properties of Zn and Al has already been very well exploited by continuous galvanizers in commercial products like Galvalume (55 wt% Al) and Galfan (5 wt% Al), which exhibit improved corrosion properties [11]. On the other hand, the effect of Al and Mg alloys has been illustrated by many studies [19]- [21]. Shiwei Li, et al [20] studied the performance of a new type of hot-dip Zn-5Al-0.5Mg-0.08Si and Zn-5Al alloy coatings on the cold rolled common steel.…”

Review—On the Application of the Scanning Vibrating Electrode Technique (SVET) to Corrosion Research

“…Other apparatuses have been developed by some research groups 2,4,101-104 but only that developed at Swansea University remains with success. 46,81,[105][106][107] All results presented in this paper were obtained with the SVET system from AE. The information that follows is based on this equipment.…”