Coso Geothermal Corrosion Studies.
Abstract
This report documents the results of geothermal corrosion studies conducted at the Coso Thermal Area, Naval Weapons Center, China Lake, California. Nine different common construction-grade piping materials were tested for periods up to about one year in three distinctive low-pressure, medium temperature environments (acid-sulfate steam, groundwater-diluted steam, and hot mineralized alkaline water) under anaerobic and aerobic conditions. Exposed specimens were analyzed principally by optical microscopy and X-ray diffraction techniques, and selectively by scanning electron microscopy, X-ray fluorescence, and atomic absorption spectroscopy. Corrosion/erosion modes, rates, and principal insoluble corrosion products were established and mechanisms based on established theory proposed to account for the modes of deterioration. Corrosion results were compared for the three fluid systems, and specific materials were then recommended for use in each of the fluid types found at the Coso Thermal Area. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1977
- Accession Number
- ADA045511
Entities
People
- Stephen A. Finnegan
Organizations
- Naval Air Weapons Station China Lake