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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.1
- 수록면
- 557 - 566 (10page)
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초록· 키워드
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A cold spray coating (CSC) of copper was studied for its application to a high-level radioactive waste (HLW) disposal canister. Several copper coatings of 10 mm thick were fabricated using two kinds of copper powders with different oxygen contents, and SS 304 and nodular cast iron were used as their base metal substrates. The fabricated CSC coppers showed a high tensile strength but were brittle in comparison with conventional non-coating copper, hereinafter defined to as “commercial copper”. The corrosion behavior of CSC coppers was evaluated by comparison with commercial coppers, such as extruded and forged coppers. The polarization test results showed that the corrosion potential of the CSC coppers was closely related to its purity; low-purity (i.e., high oxygen content) copper exhibited a lower corrosion potential, and highpurity copper exhibited a relatively high corrosion potential. The corrosion rate converted from the measured corrosion current was not, however, dependent on its purity: CSC copper showed a little higher rate than that of commercial copper.
Immersion tests in aqueous HCl solution showed that CSC coppers were more susceptible to corrosion, i.e., they had a higher corrosion rate. However, the difference was not significant between commercial copper and high-purity CSC copper.
The decrease of corrosion was observed in a humid air test presumably due to the formation of a protective passive film. In conclusion, the results of this study indicate that CSC application of copper could be a useful option for fabricating a copper HLW disposal canister.
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참고문헌 (25)
참고문헌 신청
/ 2000 / Nuclear Waste Bulletin No. 14, Nuclear Energy Agency Organization for Economic co-operation and Development
A. D. Modestov / 1995 / A Study by Voltammetry and Photocurrent Response Method of Copper Electrode Behavior in Acidic and Alkaline Solutions Containing Chloride ions / J. E
A. Papyrin / 2001 / Cold Spray Technology / Advanced Materials & Processes 49
B. Kursten / 2003 / COBECOMA (State-of-the-art document on the COrrosion BEhaviour of Container Materials), Final report
C. G. Andersson / 1998 / Test Manufacturing of Copper Canisters with Cast Inserts
A. D. Modestov / 1995 / A Study by Voltammetry and Photocurrent Response Method of Copper Electrode Behavior in Acidic and Alkaline Solutions Containing Chloride ions / J. E
A. Papyrin / 2001 / Cold Spray Technology / Advanced Materials & Processes 49
B. Kursten / 2003 / COBECOMA (State-of-the-art document on the COrrosion BEhaviour of Container Materials), Final report
C. G. Andersson / 1998 / Test Manufacturing of Copper Canisters with Cast Inserts
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