As we have used different thermal spray techniques to enhance erosion corrosion resistance of boiler tubes? Can be further apply any other technique on coated steel to improve erosion corrosion resistance?
Dear Sham,
I believe, the usual method is to use sacrificial anodes (in german Opferanode). For steel zinc is used. Zinc bars are fixed on the steel body. These anodes dissolve with time but prevent this process for steel.
Yours
R. Mitdank
You can use thermally cured epoxy coatings, that are resistant against abrasion and corrosion. These epoxy coatings offer barrier protection from alkali and caustic solution as well as chemicals and solvents.
https://www.fmpcoatings.com/greenshield-ceramic-coating/
http://www.bexxonglobal.com/ceramic-coatings-on-boilers.html
http://www.tmcpoland.com/ceramic_coatings.htm
Weld overlay is another option but you need to minimize dilution and thickness optimization
https://www.sulzer.com/-/media/files/services/tower_services/weld_overlay/brochures/spiral_360_automated_weld_overlay.ashx
Dear Sham
Overlay coatings by laser cladding is another option. See the following link :
https://www.onepetro.org/conference-paper/NACE-00235
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