Comparative corrosion behavior of Copper T2 and Brass H62 after 2-year exposure to the tropical marine atmosphere of Sri Lanka
Source abstract
Abstract
The long-term corrosion behavior of Copper T2 and Brass H62 exposed for 2 years in Sri Lanka tropical ocean atmosphere was systematically investigated. Corrosion kinetics were determined through mass loss measurement, revealing that the corrosion rates remained at a high level due to the aggressive environment. The main products on copper T2 were Cu 2 O, CuO and Cu 2 (OH) 3 Cl, while brass H62 mainly formed Cu 2 O and Zn 5 (OH) 8 Cl 2 ·H 2 O accompanied by obvious selective dezincification. A key finding was the identification of a compact inner layer and a porous outer layer. EIS results confirmed that the protective ability of the patina improved with exposure time, yet its protective efficacy was compromised by the adsorption and penetration of chloride ions. This study provides crucial insights into the degradation mechanisms of copper T2 and brass H62 in the high-chloride, high-humidity conditions of the tropical Indian Ocean.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Metallurgy and Material Science · Corrosion Behavior and Inhibition · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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