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증착 기판 온도 제어에 따른 Zn-Mg 박막의 치밀도 및 내식성 향상에 관한 연구
송면규(Myeon-Kyu Song),라정현(Joung-Hyun La),김회근(Hoe-Kun Kim),이상율(Sang-Yul Lee) 한국표면공학회 2017 한국표면공학회지 Vol.50 No.4
In this study, the corrosion resistance of Zn-3wt.%Mg coating was enhanced by controlling the density of coating. During the deposition the substrate temperature was controlled via an intermittent deposition process, resulting in the improvement of coating density. The maximum substrate temperature during this intermittent deposition process could be controlled from 200 ℃ to 80 ℃, depending upon the number of coating layer. The density of Zn-3 wt.%Mg coating increased from 76.1 % to 95.8 % as the substrate temperature was controlled. The salt spray test results revealed that the corrosion resistance of Zn-Mg coated steel could increase 3 times by increasing the density in coatings, while adhesion strength of coating was not changed significantly during 0-T bending test.