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Corrosion of materials and scaling in low-salinity East Mesa geothermal brines [electronic resource]

Geothermal Legacy.

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Bibliographic Details
Online Access:	Online Access
Corporate Author:	United States. Department of Energy. Technical Information Center (Researcher)
Format:	Government Document Electronic eBook
Language:	English
Published:	Oak Ridge, Tenn. : Oak Ridge, Tenn. : United States. Dept. of Energy. Technical Information Center ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1981.
Subjects:	Corrosion. Geothermal Fluids. Nickel Base Alloys. Nickel Alloys. Brines. Oxygen Compounds. Carbon Compounds. Carbonates. Minerals. Inconel Alloys. Fluids. Heat Resistant Materials. Alloys. East Mesa Geothermal Field. Calcium Compounds. Steels. Iron Base Alloys. Titanium Alloys. Heat Resisting Alloys. Materials. Calcium Carbonates. Titanium Base Alloys. Aluminium Base Alloys. Scaling. Aluminium Alloys. Calcite. Aragonite. Corrosive Effects. Stainless Steels. Carbon Steels. Hastelloys. Tantalum Alloys. Silicon Compounds. Niobium Alloys. Molybdenum Alloys. Inconel 625. Chromium Alloys. Silicates. Chemical Reactions. Alkaline Earth Metal Compounds. Geothermal Fields. Iron Alloys. Corrosion Resistant Alloys. Geothermal Energy.

Description
Summary:	Geothermal Legacy.
Abstract:	Field corrosion studies were conducted at the East Mesa Known Geothermal Resources Area (KGRA) in the Imperial Valley, Calif., to determine the optimum materials of construction for use in geothermal mineral energy resource recovery plants. These studies included characterization of geothermal environments and in situ corrosion testing. The corrosion resistance of 10 alloys exposed to 5 brine and steam process environments was evaluated using the low-salinity, high-temperature brine from geothermal well Mesa 6-1. Of these alloys, Hastelloy C-276, Hastelloy S, Inconel 625, titanium-2 nickel, and 316 L stainless steel had excellent resistance to corrosion in all of the process environments; E-Brite 26-1 and 430 stainless steel had fair resistance. Although general corrosion rates for 4130 steel and 1020 carbon steel were substantially higher than those of the other iron-base alloys, these two alloys could prove useful in low-salinity process environments because of their low cost. Aluminum alloy 5005 was the least corrosion resistant alloys and pitted severely. Scales formed on all of the alloys in every process environment. Calcite, aragonite, and an amorphous silicate were the major components of the scales.
Item Description:	Published through the Information Bridge: DOE Scientific and Technical Information. 01/01/1981. "bm-ri-8504" Carter, J.P.; Riley, W.D.; Cramer, S.D.; McCawley, F.X.; Needham, P.B. Jr. Bureau of Mines, Washington, DC (USA) Bureau of Mines, Avondale, MD (USA). Avondale Metallurgy Research Center.
Physical Description:	Pages: 20 : digital, PDF file.