Háskóli ÍslandsUniversity of IcelandThorhallsson, Andri IsakStefansson, AndriKovalov, DanyilKarlsdóttir, Sigrún2020-08-262020-08-262020-05Thorhallsson, A. I., Stefansson, A., Kovalov, D., & Karlsdottir, S. N. (2020). Corrosion testing of materials in simulated superheated geothermal environment. Corrosion Science, 168 doi:10.1016/j.corsci.2020.1085840010-938Xhttps://hdl.handle.net/20.500.11815/2021Publisher's version (útgefin grein)This paper reports the results of corrosion study for carbon steel, austenitic stainless steel, as well as titanium and nickel-based alloys which were tested in a simulated superheated geothermal environment (SSGE) in flow-through reactors to investigate the corrosion behaviour to aid in the future material selection for high temperature deep geothermal application. The testing fluid was superheated steam (T = 350 °C and P = 10 bars gauge) containing H2S, CO2 and HCl with condensate of pH = 3. The corrosion rate for all samples was negligible but carbon steel was prone to localized damage under a magnetite film with a sulphur rich sublayer.108584eninfo:eu-repo/semantics/openAccessCarbon steelSuperalloysSEMXRDAcid corrosionHigh temperature corrosionTæring málmaMálmblendiMálmarJarðhitiinfo:eu-repo/semantics/articleCorrosion Science10.1016/j.corsci.2020.108584