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Showing 1 to 9 of 9 for “"conversion coating"”.
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Environmentally friendly corrosion resistant coatings as alternatives for cadmium and chromium in the aerospace industry
… and carcinogenic cadmium and hexavalent chromium coatings currently being employed for corrosion protection of ultra-high strength steel and other aviation components. A powdered aluminium alloy containing 12 mass % manganese, applied with atmospheric plasma spraying, were tested as a possible …
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Environmentally friendly, rare earth-based inhibitors in conversion coatings and paint for the corrosion protection of aluminum alloys
… they are particularly susceptible to corrosion. Coatings are commonly used to protect these aluminum alloys to corrosive attack. One type of coating, called a conversion coating, is a thin, inorganic film normally deposited directly on the bare metal surface. The other types of coatings, …
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Phosphate stabilization by non-chromate post-rinse treatment
Zinc phosphate conversion coating has been applied to improve the corrosion resistance and paint adhesion. However, zinc phosphate crystals dissolve in a highly alkaline environment, which reduces the corrosion resistance of base metal. To improve the phosphate stability in a highly alkaline …
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Development of Environmentally Friendly Non-Chrome Conversion Coatings for Cold-Rolled Steel
Steel producers use various organic and inorganic coatings to protect cold-rolled steel (CRS) sheets from corrosion during shipment and storage. It is well known that CRS sheets can be protected from corrosion by galvanizing, phosphating, chromating, topcoating with organic, or their combinations. …
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Corrosion Behaviors of Coated Aluminum Alloys in Simulated Corrosive Environment
… corrosion of an aluminum alloy with and without coatings under simulated corrosive environments. Coatings were selected and applied from commercial materials and techniques, consisting of microceramic, epoxy primer, and topcoat. The experiments for coated specimens were carried out under various …
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Blister Test for Measurements of Adhesion and Adhesion Degradation of Organic Polymers on AA2024-T3
… for the performance of corrosion protective coatings applied to metals is adhesion. Surface preparation prior to coating application is known to be critical, but there is a lack of understanding of what controls adhesion. Numerous techniques have been developed in the last decades to measure …
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A Nacreous Self-Assembled Nanolaminate for Corrosion Resistance on 2024-Al Alloy
Nanometer thick layers of clay and polymer were formed on mica, silicon, and aluminum 2024-T3 alloy using alternating solutions of positively and negatively charged polymer and clay, respectively. Atomic force microscopy was used to observe the morphology of the composite films on mica and silicon. …
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Understanding non-precious metal catalysts for the oxygen reduction reaction and investigating corrosion and surface properties of carbon-doped aluminum alloys
… and utilization of fuel cells as energy conversion devices has increased recently due to their higher theoretical efficiency and lack of harmful byproducts. An additional benefit of fuel cells is that the fuel itself can be generated from renewable energy sources such as wind and solar …