THE PITTING RESISTANCE OF AISI-316 STAINLESS-STEEL PASSIVATED IN DILUTED NITRIC-ACID

• Type: Article in International Scientific Journal
• Date: 1983

Authors

Mário Adolfo Barbosa (Author) FEUP

Journal

Title: Corrosion Science

Vol. 23

Pages: 1293-1305

ISSN: 0010-938X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 34 Citations

Scopus - 41 Citations

Other information

Authenticus ID: P-001-X8D

DOI: 10.1016/0010-938x(83)90079-3

Abstract (EN): The pitting resistance of AISI 316 stainless steel after passivation in diluted nitric acid was studied in comparison with that of non-passivated specimens. The passivation treatment increased the pitting potential but decreased the resistance to crevice corrosion under open circuit conditions in aerated sea water. Immersion in the nitric acid solution was found to remove the sulphide inclusions from the metal surface, thus eliminating the most susceptible sites for attack. In the absence of sulphide particles pitting nucleated at aluminium-rich oxides. © 1983.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13