한국해양대학교

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초임계수에서 SUS 316L의 전기화학적 부식측정 연구

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dc.contributor.author 이무중 -
dc.date.accessioned 2017-02-22T07:07:40Z -
dc.date.available 2017-02-22T07:07:40Z -
dc.date.issued 2007 -
dc.identifier.uri http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002175971 ko_KR
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/10305 -
dc.description.abstract Supercritical Water Oxidation (SCWO) has attracted considerable attention as an oxidation method for hazardous organic wastes like PCBs (Polychlorinated biphenyls), dioxine, TCE (Trichloroethylene). Although SCWO is technologically capable of the efficient destruction of hazardous wastes, the process must be carried out in a reactor that will withstand not only the conditions of high temperature and pressure, but also a very corrosive environment. Such problem of corrosion may ultimately be the deciding factor in the commercial application of this technology. In this study, corrosion rates of Fe, Ni, Cr, Mo and SUS 316L were measured by LPR (Linear Polarization Resistance) method and weight loss method, in order to confirm the validation of electrochemical method in SCWO environment. Corrosion test was performed under the condition of 400℃, 40 MPa in 0.1 M HCl solution. As corrosion rates of the metals obtained from LPR method were similar to those obtained from weight loss method, electrochemical method seems to effective method for corrosion. Also it was found that the main corrosion mechanism of SUS 316L was selective dissolution of Fe and Ni under the supercritical water condition. -
dc.description.tableofcontents 제 1 장 서론 = 1 제 2 장 이론적 배경 = 3 2.1 초임계수산화의 개요 = 3 2.1.1 초임계수산화 = 3 2.1.2 초임계수의 특징 = 3 2.2 초임계수산화의 활용 = 15 2.3 초임계수산화 공정 실용화를 위한 문제 = 16 2.3.1 SCWO 환경에서의 부식유발 요인 = 16 2.3.2 실용화를 위한 재료기술 과제 = 18 2.4 부식 모니터링 = 19 2.4.1 선형분극저항법(Linear Polarization Resistance method,이하 LPR 법 ) = 19 2.4.2 부식쿠폰(Corrosion coupon) = 21 제 3 장 실험 방법 = 23 3.1 시험편 = 23 3.1.1 LPR 시험편 = 23 3.1.2 쿠폰 시험편 = 23 3.2 실험용액 = 25 3.3 실험장치 및 실험방법 = 25 3.3.1 선형분극시험(Linear Polarization Resistance, 이하 LPR test) = 25 3.3.2 Coupon Test = 30 제 4 장 실험결과 및 고찰 = 35 4.1 LPR 기법을 이용한 금속의 전기화학적 부식 시험 = 35 4.2 Coupon Test를 이용한 금속 부식 시험 = 43 4.3 동전위 분극 시험 = 49 4.4 단면관찰 및 분석 = 56 제 5 장 결론 = 61 참고 문헌 = 62 -
dc.language kor -
dc.publisher 한국해양대학교 대학원 -
dc.title 초임계수에서 SUS 316L의 전기화학적 부식측정 연구 -
dc.title.alternative Electrochemical Measurement of Corrosion of SUS 316L in Supercritical Water Oxidation Environment -
dc.type Thesis -
dc.date.awarded 2007-02 -
dc.contributor.alternativeName Lee -
dc.contributor.alternativeName Moo-Joong -
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재료공학과 > Thesis
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