Environmental Influence on Passive Films Formed on Alloy 22

Conference · Mon Oct 07 00:00:00 EDT 2002

OSTI ID:15006316

Szmodis, A W; Anderson, K L; Farmer, J C; Lian, T; Orme, C A

The passive corrosion rate of Alloy 22 is exceptionally low in a wide range of aqueous solutions, temperatures and electrochemical potentials, Alloy 22 contains approximately 22% chromium (Cr) by weight; thus, it forms a Cr-rich passive film in most environments. Very little is known about the composition, thickness and other properties of this passive film. The aim of this research was to determine the general characteristics of the oxide film that forms on Alloy 22, as a function of solution pH, temperature and applied electrochemical potential.

• 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: 15006316
• Report Number(s): UCRL-JC-150682; TRN: US200407%%212
• Resource Relation: Conference: National Association of Corrosion Engineers International Conference, San Diego, CA (US), 03/16/2003--03/20/2003; Other Information: PBD: 7 Oct 2002
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
AQUEOUS SOLUTIONS
CHROMIUM
CORROSION
ENGINEERS
OXIDES
THICKNESS