Critical issues in the use of metals and alloys in sulphur-containing aqueous systems
Sulphur-containing aqueous fluids are amongst the most corrosive environments experienced in industrial and natural systems. The high corrosivity is due principally to the wide range of oxidation states that sulphur may exist in within the thermodynamic stability domain of water, as well as to the high lability of many sulphur species, such as the polythionic acids and polysulfides. Additionally, sulphur, along with arsenic, antimony, and mercury, effectively promotes the entry of hydrogen into metal and alloy matrices, thereby leading to hydrogen damage and hydrogen embrittlement. In this paper, the chemistry of sulphur species in aqueous solutions and of the various iron sulphides is reviewed with emphasis on illustrating the diverse nature of metal/sulphur interactions. Finally, we identify a number of critical issues that need to be resolved to greatly improve our understanding of the chemistry of sulphur-containing systems and to improve our ability to predict the form and extent of corrosion in geochemical and geoenergy systems.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States). Center for Advanced Materials
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-91ER45461
- OSTI ID:
- 10158051
- Report Number(s):
- DOE/ER/45461-9; CONF-9208224-1; ON: DE93012924
- Resource Relation:
- Conference: 31. annual conference of metallurgists on materials performance, sulphur and energy,Edmonton (Canada),24-27 Aug 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
15 GEOTHERMAL ENERGY
GEOTHERMAL FLUIDS
CORROSIVE EFFECTS
BRINES
IRON SULFIDES
HYDROGEN SULFIDES
IRON
SULFUR
AQUEOUS SOLUTIONS
STEELS
HYDROGEN EMBRITTLEMENT
INFORMATION NEEDS
ELECTRIC POTENTIAL
PH VALUE
TEMPERATURE RANGE 0400-1000 K
360105
150903
CORROSION AND EROSION
CORROSION, SCALING, AND MATERIALS DEVELOPMENT