Corrosion tests in Hawaiian geothermal fluids

• Main Authors: Larsen-Basse, J., Lam, Kam-Fai
• Language: unknown
• Published: 2006
• Subjects: 15 GEOTHERMAL ENERGY; 36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; PITTING CORROSION; COPPER; GEOTHERMAL FLUIDS; CORROSIVE EFFECTS; HASTELLOYS; NICKEL; STAINLESS STEEL-304; STAINLESS STEELS; TITANIUM ALLOYS; HAWAII; HYDROGEN SULFIDES; STEAM; ALLOYS; CHALCOGENIDES; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-NICKEL STEELS; CORROSION; CORROSION RESISTANT ALLOYS; ELEMENTS; FEDERAL REGION IX; FLUIDS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HYDROGEN COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS; METALS; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NORTH AMERICA; STEELS; SULFIDES; SULFUR COMPOUNDS; TRANSITION ELEMENTS; USA; Iceland
• Online Access: http://www.osti.gov/servlets/purl/6846501; https://www.osti.gov/biblio/6846501

Exposure tests were conductd in binary geothermal brine on the island of Hawaii. The steam which flashes from the high pressure, high temperature water as it is brought to ambient pressure contains substantial amounts of H{sub 2}S. In the absence of oxygen this steam is only moderately aggressive but in the aerated state it is highly aggressive to carbon steels and copper alloys. The liquid after flasing is intermediately aggressive. The Hawaiian fluid is unique in chemistry and corrosion behavior; its corrosiveness is relatively mild for a geothermal fluid falling close to the Iceland-type resources. 24 refs., 7 figs., 5 tabs.