We created a corrosion cell
using a potentiostat, three electrodes, and a solution to mimic the metals environment at the corrosion laboratory at Georgia Tech.
A corrosion cell
comprising four concrete beams was constructed.
The partially heat-activated WOA residues (moisture-absorbing) were, by themselves, not corrosive; however, combined with high chloride residues from a HASL flux (marginal cleaning during board fabrication) the moisture absorbed by the flux was enough to establish the conditions for a corrosion cell
All four components are required for a corrosion cell
ANODE--Half of an electrolytic corrosion cell
in metal from which metal dissolves, often leaving pits.
We wanted to avoid the possibility of a galvanic corrosion cell
between the cast iron casing and the stainless steel impeller and sleeves," he says.
The admixture provides corrosion protection to anodic and cathodic areas of corrosion cell
The water (an electrolyte) is a necessary component of the corrosion cell
In the presence of an electrolyte, a corrosion cell
is formed with aluminum anodes and a steel cathode.
Ion chromatography analysis of the entire assembly would not reveal what caused the localized corrosion cell
on one capacitor.
A three-electrode corrosion cell
consisting of Ag/AgCl was used as the reference electrode, Pt as the counter electrode, and our test specimens (different percentages of zinc in Zn-Ni alloys) cleaned of corrosion products were used as the working electrode.
The more active of the two metals or alloys (the one that is lower in the electrochemical series) will become the anode in a corrosion cell
and corrosion will begin at the point of contact with the cathode (the other metal).