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논문 기본 정보

자료유형
학술저널
저자정보
Sung-Yul Lee (Korea Maritime and Ocean University) Kyung-Man Moon (Korea Maritime and Ocean University) Jae-Hyun Jeong (Korea Maritime and Ocean University) Myeong-Hoon Lee (Korea Maritime and Ocean University) Tae-Sil Baek (Pohang College)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제39권 제5호
발행연도
2015.6
수록면
536 - 541 (6page)

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초록· 키워드

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Copper has been used extensively as an electric wire or as a base material in various types of machineries owing to its good electrical and thermal conductivity and good fabricating property, as well as its good corrosion resistance compared to iron. Furthermore, the copper-nickel alloy has significant corrosion resistance in severely corrosive environments. Although, cupro-nickel alloy shows better corrosion resistance than the brass and bronze series, this alloy also corroded in severely corrosive environments, including aggressive chloride ions, dissolved oxygen, and condition of fast flowing seawater. In this study, and annealing treatment at various annealing temperatures was carried out on the cupro-nickel (Cu-10%Ni) alloy, and the effects of annealing were investigated using electrochemical methods, such as measuring the polarization and impedance behaviors under flowing seawater conditions. The corrosion resistance increased by annealing compared to non heat treatment in the absence of flowing seawater. In particular, the sample annealed at 200 ℃ exhibited the best corrosion resistance. The impedance in the presence of flowing seawater showed higher values than in the absence of flowing seawater. Furthermore, the highest impedances was observed in the sample annealed at 800 ℃, irrespective of the present of flowing seawater. Consequently, the corrosion resistance of cupro-nickel (Cu-10%Ni) alloy in a severely corrosive environment can be improved somewhat by annealing.

목차

Abstract
1. Introduction
2. Experimental procedure
3. Results and discussion
4. Conclusions
References

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