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Linear polarization measurements at high temperatures in hypersaline geothermal brines.

Authors
Cramer-SD; Needham-PB Jr.
Source
Avondale, MD: U.S. Department of the Interior, Bureau of Mines, RI 8308, 19787 Jan; :1-15
Link
NIOSHTIC No.
10007868
Abstract
The Bureau of Mines conducted a series of in-situ linear polarization measurements in high-temperature, high-pressure hypersaline geothermal brines at the Bureau of Mines geothermal test facility in the Imperial Valley of California. The measurements represented an evaluation of the linear polarization technique for obtaining instantaneous corrosion rates of materials of construction in flowing hypersaline hydrothermal fluids that rapidly form scales on exposed surfaces. A special method was devised for use with the linear polarization technique that resulted in obtaining corrosion rates for 1020 carbon steel, 316 and 430 stainless steel, titanium, various nickel-based alloys, and aluminum 6061 under strong scale-forming conditions. The measurements also provided information on scale-deposition rates in various geothermal environments. Exploratory in situ potentiostatic polarization measurements were made in the flowing brines to qualitatively determine scale-deposition effects on the electrochemical measurements.
Publication Date
19780101
Document Type
IH; Report of Investigations
Fiscal Year
1978
NTIS Accession No.
PB-288121
NTIS Price
A03
Identifying No.
RI-8308
NIOSH Division
AVRC
Source Name
Avondale, MD: U.S. Department of the Interior, Bureau of Mines, RI 8308
State
MD; CA
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