Influence of Metallic Powder Contents on Corrosion Resistance of Galvanized Steel with Metal Powder-containing Organic Coatings for Automobile Fuel Tanks

Corrosion Behavior of Galvanized Steel with Organic Coatings Containing Metallic Powders

“…This is contrast to the almost un-corroded Zn layer beneath the flaky Al powder, above which a Ni powder was present. 8 The present study suggests that the cor rosion protection properties of the organic coatings are improved by simultaneous addition of Ni and Al powders, even though the separate additions of these powders accelerates the corrosion. Findings in this study open up a new design principle of the composite organic coatings containing metallic powders.…”

“…As discussed above, the epoxy coatings containing both Ni and Al powders, showing satisfactor y weldability and corrosion protection properties, have been commercially used for fuel tank, 2 but the cor rosion protection characteristics were still unclear. Recently, we examined the corrosion behavior of a galvanized steel coated with epoxy resin films containing various concentrations of particulate Ni and flaky Al powders in an aqueous solution containing 100 ppm formic acid, 100 ppm acetic acid and 83 ppm NaCl at 40 C. 8 We found that the particulate Ni powder in the epoxy resin coating accelerated corrosion because of galvanic corrosion between a Ni and a Zn layer and increased gas diffusion owing to the presence of voids in the epoxy resin around Ni powders. However, the addition of flaky Al powders together with Ni powders improved the corrosion resistance.…”

Data showing the effects of disc milling time on the composition and morphological transformation of (α+β) titanium alloy (Ti–6Al–2Sn–2Mo–2Cr–2Zr-0.25Si) grade

“…Data Areas of Application.Titanium alloy powder can be used in powder metallurgy for spark plasma sintering [2], [4].Titanium alloy powder can also be utilized as reinforcement in composite fabrication [5].Nanoparticles of titanium can be used in the development of nano-lubricants to improve tribological properties [6], [7].It can also be applied in the improvement of coatings for automobile applications [8], [9].…”

Laser Descaling Area Recognition Method Based on LabVIEW and Machine Vision

“…Metals are the most widely used materials in engineering applications [1]. Before metal parts are put into service, they are usually painted to improve their corrosion resistance, and surface cleaning is required to remove floating rust and other contaminants before painting [2].…”