Corrosion tests in Hawaiian geothermal fluids

• Main Authors: Larsen-Basse, J., Lam, Kam-Fai
• Format: Article in Journal/Newspaper
• Language: English
• Published: Hawaii Univ., Honolulu (USA). Dept. of Mechanical Engineering 1984
• Subjects: Elements; Alloys; Nickel; Corrosive Effects; Nickel Alloys; 36 Materials Science; Sulfides; Chemical Reactions; 15 Geothermal Energy; Corrosion; Geothermal Fluids; Molybdenum Alloys; Chalcogenides; Heat Resistant Materials; Hawaii; Pitting Corrosion; Materials; Aluminium Alloys; Chromium Alloys; Hydrogen Sulfides; Chromium-Nickel Steels; Hastelloys; Copper; 360105 > Metals & Alloys > Corrosion & Erosion; Federal Region Ix; Transition Elements; Stainless Steel-304; Heat Resisting Alloys; Metals; Usa Geothermal Legacy 150903* > Geothermal Engineering > Corrosion; Scaling & Materials Development; Sulfur Compounds; Titanium Alloys; Steels; Geothermal Legacy; Corrosion Resistant Alloys; Iron Alloys; Fluids; Stainless Steels; Hydrogen Compounds; Iron Base Alloys; North America; Steam; Chromium Steels; Iceland
• Online Access: https://digital.library.unt.edu/ark:/67531/metadc1183960/

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.