Chemisorption and catalysis in polythionic/thiosulfate stress corrosion cracking

Journal Article · Sun Sep 01 00:00:00 EDT 1985 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2114296· OSTI ID:6408124

Kreysa, G; Kochanek, W

The stress corrosion cracking of sensitized stainless steels due to thiosulfate and tetrathionate has been associated with an increased rate of anodic dissolution in the active-passive region of voltammetric scans, via the mutual sensitivity of both phenomena to a series of anionic inhibitors. The increased anodic dissolution is caused by the adsorption of the sulfur compound and its catalysis of metal oxidation. The inhibitors function, not by competitivel desorbing the corrodent, but by aiding the passivation process.

• Research Organization: Exxon Research and Engineering Company, Florham Park, New Jersey
• OSTI ID: 6408124
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 132:9; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
ANIONS
ANODIZATION
CATALYSIS
CHARGED PARTICLES
CHEMICAL COATING
CHEMICAL REACTIONS
CHEMISORPTION
CHROMIUM ALLOYS
CORROSION
CORROSION INHIBITORS
CORROSION PROTECTION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
CRACKS
DEPOSITION
DISSOLUTION
ELECTROCHEMICAL COATING
ELECTROLYSIS
IONS
IRON ALLOYS
IRON BASE ALLOYS
LYSIS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PASSIVATION
SENSITIVITY
SEPARATION PROCESSES
SORPTION
STAINLESS STEELS
STEELS
STRESS CORROSION
SULFUR COMPOUNDS
SURFACE COATING
THIONATES
THIOSULFATES
VOLTAMETRY