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Title: Corrosion of nickel metal by hydrothermal sodium tungstate solution observed by in-situ infrared spectroscopy

Abstract

Corrosion of nickel metal in a high-temperature aqueous tungstate solution was described. The corrosion altered the solution's pH, which affected the equilibrium of the solution chemistry. These secondary effects of the corrosion process were observed with in-situ infrared (IR) spectroscopy, demonstrating that important information on corrosion phenomena at the solid-fluid interface may be obtained from in-situ spectroscopic studies of the fluid phase. Subsequent scanning electron microscopy (SEM) analysis of the corroded nickel metal and solid corrosion products support conclusions drawn from solution chemistry measurements. The presented findings are of interest to researchers and engineers that use pure nickel or nickel-bearing alloys as a material for high-temperature, high-pressure applications in aqueous solutions.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest National Lab., Richland, WA (US)
OSTI Identifier:
20075968
Resource Type:
Journal Article
Journal Name:
Corrosion (Houston)
Additional Journal Information:
Journal Volume: 56; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 0010-9312
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CORROSION; NICKEL; AQUEOUS SOLUTIONS; SODIUM TUNGSTATES; PH VALUE; INFRARED SPECTROMETERS; SCANNING ELECTRON MICROSCOPY

Citation Formats

Hoffmann, M.M., and Fulton, J.L. Corrosion of nickel metal by hydrothermal sodium tungstate solution observed by in-situ infrared spectroscopy. United States: N. p., 2000. Web. doi:10.5006/1.3280554.
Hoffmann, M.M., & Fulton, J.L. Corrosion of nickel metal by hydrothermal sodium tungstate solution observed by in-situ infrared spectroscopy. United States. doi:10.5006/1.3280554.
Hoffmann, M.M., and Fulton, J.L. Mon . "Corrosion of nickel metal by hydrothermal sodium tungstate solution observed by in-situ infrared spectroscopy". United States. doi:10.5006/1.3280554.
@article{osti_20075968,
title = {Corrosion of nickel metal by hydrothermal sodium tungstate solution observed by in-situ infrared spectroscopy},
author = {Hoffmann, M.M. and Fulton, J.L.},
abstractNote = {Corrosion of nickel metal in a high-temperature aqueous tungstate solution was described. The corrosion altered the solution's pH, which affected the equilibrium of the solution chemistry. These secondary effects of the corrosion process were observed with in-situ infrared (IR) spectroscopy, demonstrating that important information on corrosion phenomena at the solid-fluid interface may be obtained from in-situ spectroscopic studies of the fluid phase. Subsequent scanning electron microscopy (SEM) analysis of the corroded nickel metal and solid corrosion products support conclusions drawn from solution chemistry measurements. The presented findings are of interest to researchers and engineers that use pure nickel or nickel-bearing alloys as a material for high-temperature, high-pressure applications in aqueous solutions.},
doi = {10.5006/1.3280554},
journal = {Corrosion (Houston)},
issn = {0010-9312},
number = 5,
volume = 56,
place = {United States},
year = {2000},
month = {5}
}