Effects of various anode materials on the corrosion resistance of calcareous films deposited with an oyster shell waste-recycled solution
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초록
The favorable role of calcareous coatings that improve the effectiveness of cathodic protection in submerged marine struc-tures is generally recognized. However, although selection of anode materials has a significant effect on deposits, related studies have not been conducted extensively. Further, a method of supplementing calcium, which is the main component of calcareous film, in seawater has not been investigated. Thus, in this study, the calcareous films were electrodeposited using four anodes of STS, Al, Zn, AZ31 in the Ca(HCO3)2 solution where calcium hydrogen carbonate was prepared from oyster shell waste. The surface morphology, structure, and elemental composition analyses of the calcareous films were conducted through X-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDS), respectively, and corrosion resistance was evaluated through 3% NaCl immersion test and anodic polarization experiments. Consequently, it was determined that the corrosion resistance of the calcareous thin film using Mg was higher than others.
Abstract
The favorable role of calcareous coatings that improve the effectiveness of cathodic protection in submerged marine struc-tures is generally recognized. However, although selection of anode materials has a significant effect on deposits, related studies have not been conducted extensively. Further, a method of supplementing calcium, which is the main component of calcareous film, in seawater has not been investigated. Thus, in this study, the calcareous films were electrodeposited using four anodes of STS, Al, Zn, AZ31 in the Ca(HCO3)2 solution where calcium hydrogen carbonate was prepared from oyster shell waste. The surface morphology, structure, and elemental composition analyses of the calcareous films were conducted through X-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDS), respectively, and corrosion resistance was evaluated through 3% NaCl immersion test and anodic polarization experiments. Consequently, it was determined that the corrosion resistance of the calcareous thin film using Mg was higher than others.
참고문헌 (14)
- W. H. Hartt, "Calcareous deposits on metal surfaces in seawater—A critical review", Corrosion, 40(11), pp.609~618 (1984)
- 박준무, "해양환경 중 음극전류 프로세스에 의해 강판에 형성된 석회질 피막의 특성 분석", 한국표면공학회지, 49(2), pp.166~171 (2016), 한국표면공학회[DOI]
- 이승효, "천연해수 중 음극방식 응용 원리에 의해 제작한 Mg(OH)2 코팅막의 밀착성 및 내식성", 한국표면공학회지, 46(1), pp.1~8 (2013), 한국표면공학회[DOI]
- Y. F. Yang, "Underpro-tection of mild steel in seawater and the role of the calcare-ous film", Corrosion, 68(5), pp.432~440 (2012)
- P. Refait, "Corrosion and cathodic protection of carbon steel in the tidal zone : Products, mechanisms and kinetics", Corrosion Science, 90, pp.375~382 (2015)
- C. S. Lim, "Evaluation of technical feasibility of ap-plying calcareous deposit coatings to ship ballast tanks", Corrosion Reviews, 18(2-3), pp.181~194 (2000)
- S. Asaoka, "Re-moval of hydrogen sulfide using crushed oyster shell from pore water to remediate organically enriched coastal marine sediments", Bioresource Technology, 100(18), pp.4127~4132 (2009)
- Chilakala Ramakrishna, "Extraction of Precipitated Calcium Carbonate from Oyster Shell waste and Its Applications", 에너지공학, 27(1), pp.51~58 (2018), 한국에너지학회
- 손병현, "Reactivity of Bio-sorbent Prepared by Waste Shells of Shellfish in Acid Gas Cleaning Reaction", Korean Journal of Chemical Engineering, 22(4), pp.566~568 (2005), 한국화학공학회
- Jong-Hyeon Jung, "Reuse of Waste Oyster Shells as a SO2", NOx Removal Absorbent, 2007, pp.13(4), 512~517[DOI]
- 김범수, "강판상에 굴 패각을 이용한 탄산칼슘 피막의 형성", 한국표면공학회지, 50(6), pp.531~535 (2017), 한국표면공학회[DOI]
- 이찬식, "천연해수 중 온도 변화에 따라 전착한 환경친화적인 석회질 피막의 특성 분석", 한국마린엔지니어링학회지, 39(7), pp.779~785 (2015), 한국마린엔지니어링학회[DOI]
- R. A. Humble, "Cathodic protection of steel in sea water with magnesium anodes", Corrosion, 4(7), pp.358~370 (1948)
- S. Elbeik, "The for-mation of calcareous deposits during the corrosion of mild steel in sea water", Corrosison Science, 26(9), pp.669~680 (1986)