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논문 기본 정보

자료유형
학술저널
저자정보
전종모 (안동대학교) 유영란 (안동대학교) 정민재 (안동대학교) 김영천 (안동대학교) 김영식 (안동대학교)
저널정보
한국부식방식학회 Corrosion Science and Technology CORROSION SCIENCE AND TECHNOLOGY 제20권 제6호
발행연도
2021.12
수록면
335 - 346 (12page)
DOI
10.14773/cst.2021.20.6.335

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Since epoxy resin coating shows excellent properties in formability, adhesion, and corrosion resistance,they have been extensively used in many industries. However, various types of damages in the epoxycoated tube within a relative short time have been reported due to cavitation erosion, liquid impingement,variation of temperature and pressure. Nevertheless, there has been little research on the effect of temperatureon the cavitation degradation of epoxy coatings. Therefore, this work used an ultrasonic cavitationtester to focus on the effect of solution temperature on the cavitation properties of 3 kinds of epoxycoatings in 3.5% NaCl. The cavitation properties were discussed basis on the material properties and environmentalaspects. As the solution temperature increased, even though with large fluctuation, the cavitationdegradation rates of A and B coatings were reduced rapidly, but the rate of C coating was decreasedgradually. In addition to the cushioning effect, the reason that the cavitation degradation rate reduced withsolution temperature was partly related to the brittle fracture and water absorptivity of the epoxy coatings,and the water density, but was little related to the shape and composition of the compound in the coatingsor the phase transition of the epoxy coating.

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