3.5% NaCl 수용액 중에서의 금속과 GECM의 갈바닉 부식에 미치는 면적비의 영향
Effect of Area Ratio on Galvanic Corrosion Between Metallic Materials and GECM in 3.5% NaCl Solution
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다운로드
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참고문헌
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초록
Galvanic coupling between GECM(graphite epoxy composite material) and metallic materials can facilitate corrosion of metals and alloys because GECM is noble and electrically conductive. Galvanic corrosion is affected by many factors including metallic materials, area ratio, surface condition, and corrosivity. This work aims to evaluate the effect of area ratio on galvanic corrosion between GECM and several metals. In the case of glavanic coupling of carbon steel and Al to GECM, corrosion rate increased with increasing area ratio. Corrosion rate of sensitized STS 316S stainless steel decreased a little at an area ratio 1:1 but increased at an area ratio 30:1. It is considered to be due to that area ratio affects galvanic corrosion more in less corrosion resistant alloys. However, in case of STS 316 and Ti, galvanic coupling reduces corrosion rate by the formation of passive film.
Abstract
Galvanic coupling between GECM(graphite epoxy composite material) and metallic materials can facilitate corrosion of metals and alloys because GECM is noble and electrically conductive. Galvanic corrosion is affected by many factors including metallic materials, area ratio, surface condition, and corrosivity. This work aims to evaluate the effect of area ratio on galvanic corrosion between GECM and several metals. In the case of glavanic coupling of carbon steel and Al to GECM, corrosion rate increased with increasing area ratio. Corrosion rate of sensitized STS 316S stainless steel decreased a little at an area ratio 1:1 but increased at an area ratio 30:1. It is considered to be due to that area ratio affects galvanic corrosion more in less corrosion resistant alloys. However, in case of STS 316 and Ti, galvanic coupling reduces corrosion rate by the formation of passive film.
참고문헌 (8)
- D. G. Lee, "Composite Materials Mechanics and Forming" (1993), Seongandang
- T. J. Reinhart, , ASM International, 1, pp.683~ (1987)
- Composite Motor Cases of Tactical Rockets, "H. V. Gerlach", AIAA, ~, pp.AIAA-88-3327
- A. K. Munjal, , SAMPE Quarterly, 17, pp.1~ (1986)
- D.M.Aylor, "The Effect of a Seawater Environment on the Galvanic Corrosion Behavior of Graphite", Epoxy Composites Coupled to Metals, 1992
- G.Mantong, "Contact corrosion between carbon fiber reinforced composite materials and high-strength metals", National Air Intelligence Center Wright-Patterson AFB OH, ~ (1995)
- S.D.Thompson, "Accelrated Corrosion Testing of Graphite", Epoxy Composites and Aluinum Alloy Mechanically-Fastened Joints, 1985
- 유영란, "금속재료의 전기화학적 갈바닉 부식에 미치는 GECM의 영향", CORROSION SCIENCE AND TECHNOLOGY, 8(1), pp.27~39 (2009), 한국부식방식학회