Electrochemical Investigations of Microbiologically Influenced Corrosion on 316L-Cu Stainless Steel by Pseudoalteromonas lipolytica

Autor: Trinet Yingsamphancharoen, Aphichart Rodchanarowan, Ke Yang, Dake Xu, Phuri Kalnaowakul
Rok vydání: 2020
Předmět:
Zdroj: Science of Advanced Materials. 12:191-199
ISSN: 1947-2935
DOI: 10.1166/sam.2020.3625
Popis: Microbiologically influenced corrosion (MIC) is becoming more often a risk factor in several industries, such as offshore, cooling water systems and construction. The Pseudoalteromonas lipolytica (P. lipolytica) is a highly corrosive aerobic marine bacterium. In this work, the 316L-Cu SS was investigated the corrosion behavior under the abiotic medium and biotic medium of P. lipolytica. Based on the electrochemical analysis, the corrosion current density (icorr) under the biotic medium is higher than that under the abiotic medium. The presence of P. lipolytica has led to the dissolution of the passive film of 316L-Cu SS, which initiates the localized pitting corrosion. However, the addition of Cu in 316L SS by melting in the vacuum induction furnace improved more corrosion-resistant than without the addition of Cu.
Databáze: OpenAIRE