THE USE OF MICROELECTRODES IN THE STUDY OF THE EFFECTS OF ELECTROLYTE COMPOSITION, POTENTIAL AND METALLURGICAL CONDITION ON NUCLEATION AND METASTABLE PITTING OF STAINLESS STEEL 316

Conference · Thu Sep 23 00:00:00 EDT 2004

OSTI ID:15011798

Ilevbare, G O; Burstein, G T

The study of stainless steel 316 has been undertaken in electrolytes containing various concentrations of chloride (Cl{sup -}) and perchlorate (ClO{sub 4}{sup -}) ions. The concentration of Cl{sup -} and ClO{sub 4}{sup -} in these electrolytes varied between 0.025 and 0.1 M in a variety of combinations. Results showed that the total number of nucleation and metastable pitting events increased as [Cl{sup -}] and potential increased. However, the percentage propagation rate of metastable pits from nucleations increased. The data also showed that the metallurgical condition of the specimen affected the number of nucleations and metastable pits generated.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15011798
• Report Number(s): UCRL-CONF-206835; TRN: US200508%%203
• Resource Relation: Conference: Presented at: 206th Meeting of the Electrochemical Society, Honolulu, HI (US), 10/03/2004--10/08/2004; Other Information: PBD: 23 Sep 2004
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHLORIDES
ELECTROLYTES
NUCLEATION
PERCHLORATES
STAINLESS STEEL-316