한국표면공학회지 (54권6호 371-379)
Study on Evaluation of Degrease Performance on the Interface between Oil and Alloy
탈지 정도에 대한 방청유-금속 계면의 영향성 평가
최원영1, †, 김문수1, †, 유현석2, 송연균2, 정용균2, 최진섭1,*
Wonyoung Choi1, † , Moonsu Kim1, †, Hyeonseok Yoo2, Yeongyun Song2, Yong-Gyun Jeong2, Jinsub Choi1, *
1: 인하대학교 화학공학과; 2: 포스코 철강솔루션연구소
1: Department of Chemistry and Chemical Engineering, Inha University 22212, 100 Inha-ro, Michuhol-gu, Incheon, South Korea 2: Steel Solution Research Lab., POSCO 21985, 100 Songdogwahak-ro, Yeonsu-gu, Incheon, South Korea
The use of anti-corrosive oil (AC) is inevitable for production of industrial steels to prevent corrosion. The AC is degreased before application of steels, which crucially effects on final products, such as automobile, electricity etc. However, qualitative/quantitative evaluation of degreasing performance are steal insufficient. In this study, degreasing performance of anti-corrosive oil on steel have been studied through X-ray photon spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS). Commercial automotive steels (AMS) are coated with 4 different anti-corrosive oils (namely AC1-AC4). In XPS, intensity of C1s peak remained after degreasing indirectly indicates incomplete degreasing. Thus, higher C1s peak intensity means less effective degreasing by degreasing agent. peak intensity of C1s peak shows opposite tendency of peak intensity of O1s. We found that EIS analysis is not applicable to mild steel (such as AMS1) due to corrosion during measurement. However, alloy steel can be fully analyzed by EIS and XPS depth profile.
Steel, Oil, Anticorrosive oil, Degrease, Electrochemical impedance spectroscopy, EIS
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