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Efficacy of zinc and tourmaline in mitigating corrosion of carbon steel in non-flow mode |
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| Authors: | Leonard D Tijing Michael Tom G Ruelo Chan-Hee Park Altangerel Amarjargal Han Joo Kim Hem Raj Pant Dong-Hwan Lee Cheol Sang Kim |
| Institution: | 1. Division of Mechanical Design Engineering, Chonbuk National University, 567 Baekje-daero, Duckjin-gu, Jeonju, Jeonbuk, 561-756, Republic of Korea 2. Department of Mechanical Engineering, College of Engineering and Design, Silliman University, Hibbard Avenue, Dumaguete City, Negros Oriental, 6200, Republic of the Philippines 3. Department of Bionanosystem Engineering, Chonbuk National University, 567 Baekje-daero, Duckjin-gu, Jeonju, Jeonbuk, 561-756, Republic of Korea 4. Power Engineering School, Mongolian University of Science and Technology, Baga Toiruu 34, Sukhbaatar District, Ulaanbaatar, 210-646, Mongolia 5. Department of Engineering Science and Humanities, Institute of Engineering, Tribhuvan University, Pulchowk Campus, 1175, Kathmandu, Nepal |
| Abstract: | Laboratory corrosion immersion tests were carried out to investigate the effectiveness of a physical water treatment (PWT) using zinc and ceramic tourmaline-based catalytic materials for the control of carbon steel corrosion in acidic still water (i.e., pH 4.5–5). The tests were carried out at different water temperatures over 168 h. Our results showed a maximum of 22 % reduction in the corrosion rate using PWT in comparison with the control case. Furthermore, the corrosion products depicted more agglomerated particles after the PWT treatment. In both cases, differences were observed in the crystal structures, showing in general lower corrosion activity when PWT was used. The present results could find potential applications in water distribution systems and where metallic materials are exposed to stagnant acidic water. |
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