Sealing treatment is a post-surface treatment of the plasma spray coating process to improve the corrosion resistance of the coating material. In this study, the effect of the sealing on the corrosion resistance and adhesive strength of the plasma spray-coated alumina coatings was analyzed. For sealing, an epoxy resin was applied to the surface of the coated specimen using a brush. The coated specimen was subjected to a salt spray test for up to 48 hours and microstructural analysis revealed that corrosion in the coating layer/base material interface was suppressed due to the resin sealing. Measurement of the adhesive strength of the specimens subjected to the salt spray test indicated that the adhesive strength of the sealed specimens remained higher than that of the unsealed specimens. In conclusion, the resin sealing treatment for the plasma spray-coated alumina coatings is an effective method for suppressing corrosion in the coating layer/base material interface and maintaining high adhesive strength.

Abstract
1. 서 론
2. 실험 방법
    2.1. 플라즈마 코팅시편 제작
    2.2. 코팅층 특성 평가
3. 결과 및 고찰
    3.1. 코팅층 미세조직
    3.2. 염수분무시험 시편 코팅층 미세조직 및 접합강도
4. 결 론
Acknowledgements
References

• 권의표(한국생산기술연구원 탄소경량소재응용연구그룹) | Eui Pyo Kwon (Carbon & Light Materials Application R&D Group, Korea Institute of Industrial Technology, Jeonju 54853, Republic of Korea) Corresponding author
• 김세웅(한국생산기술연구원 탄소경량소재응용연구그룹) | Se Woong Kim (Carbon & Light Materials Application R&D Group, Korea Institute of Industrial Technology, Jeonju 54853, Republic of Korea)
• 이종권(㈜세원하드페이싱 제품개발부) | Jong Kweon Lee (Product Development Division, Sewon Hardfacing Co. Ltd., Wanju 55323, Republic of Korea)