BRANZ examined the corrosion of aluminium-zinc alloy-coated steel in geothermal environments in a 2-year field trial. At the same time, identical samples were exposed to a marine environment. The results show that these coatings degrade and fail more quickly in a geothermal environment than a marine environment.
Geothermal corrosion #4: The performance of aluminium-zinc alloy coating in geothermal environments
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