Corrosion Behavior of α, β'-Brass in NaNO3 Solutions. (7th April 2015)

• Record Type: Journal Article
• Authors: Berne, Clément; Andrieu, Eric; Reby, Jean; Sobrino, Jean-Michel; Blanc, Christine
• Is Part Of: ECS transactions. Volume 64:Number 26(2014)
• Page Start: 111
• Page End: 120
• Publication Date: 2015-04-07
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/06426.0111ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : The corrosion behavior of an α, β'-brass CuZn40Pb2 (CW617N) was studied in solutions with basic pHs and various nitrate ion concentrations. Corrosion at the open circuit potential was observed to proceed by the galvanic coupling of α and β' phases, leading to a surface dezincification of the β' phase and the evolution of the passive layer. When the alloy was polarized in the anodic domain, a pseudo-passive or a passive stage followed by a passive breakdown was observed.