용융Al-Si도금 강재에 형성한 Cr 막의 고온 환경 중 내식특성
Corrosion resistance at high temperature condition of Cr Films Formed on hot-dip Al-Si plated steel sheet
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Generally, steel is the most commonly used in the industry because of good strength, processability and cost-effectiveness. Steel can be surface-treated such as coating or used as an alloy by adding elements such as Cr, Ni, Zr, and Al to increase corrosion resistance. However, even if steel is used in same environment corrosion resistance is sharply lowered when it is exposed to a high temperature for a fixed or extended period of time due to an overload or other factors. In particular, the use of hot-dip aluminized plated steel, which is used in high-temperature atmospheres, is increasing due to the surface Al2O3 oxide film. This steel necessitates an urgent solution as issues of corrosion resistance limitations often appear. It is an important issue that not only cause analysis but also the research for the surface treatment method that can be solved. Thus, in this study, Cr in which it is expected to be effective in corrosion resistance and heat resistance attempted to deposit on hot dip aluminized plated steel with PVD sputtering. And it was possible to present the surface treatment application of various types of industrial equipment exposed to high temperature and basic design guidelines for use by confirming the corrosion resistance of hot dip Al-Si plated steel with Cr film deposited at high temperature.
Abstract
Generally, steel is the most commonly used in the industry because of good strength, processability and cost-effectiveness. Steel can be surface-treated such as coating or used as an alloy by adding elements such as Cr, Ni, Zr, and Al to increase corrosion resistance. However, even if steel is used in same environment corrosion resistance is sharply lowered when it is exposed to a high temperature for a fixed or extended period of time due to an overload or other factors. In particular, the use of hot-dip aluminized plated steel, which is used in high-temperature atmospheres, is increasing due to the surface Al2O3 oxide film. This steel necessitates an urgent solution as issues of corrosion resistance limitations often appear. It is an important issue that not only cause analysis but also the research for the surface treatment method that can be solved. Thus, in this study, Cr in which it is expected to be effective in corrosion resistance and heat resistance attempted to deposit on hot dip aluminized plated steel with PVD sputtering. And it was possible to present the surface treatment application of various types of industrial equipment exposed to high temperature and basic design guidelines for use by confirming the corrosion resistance of hot dip Al-Si plated steel with Cr film deposited at high temperature.
참고문헌 (10)
- K. Baldwin, "Aluminium-magnesium alloys as corrosion resistant coatings for steel", Corros. Sci, 38, pp.155~170 (1996)
- C. Nicard, "Effect of Zn and Mg alloying in microstructure and anticorrosion mechanisms of Al-Si based coating for high strength steel", Corros. Sci, 146, pp.192~201 (2019)
- O. J. Tepez, "On the mechanism of high temperature corrosion", Research Gate, ~ (2018)
- P. L. Neto, "Structural and morphological investigations of the electrodeposited Cr and Ni-Cr-P coatings and their electrochemical behaviors in chloride aqueous medium", J. Braz. Chem. Soc, 17, pp.1419~1427 (2006)
- 배기태, "EIS 분석을 통한 Mg 함량에 따른 Zn-Mg 박막의 부식 특성에 관한 연구", 한국표면공학회지, 47(6), pp.330~334 (2014), 한국표면공학회[DOI]
- S. Cui, "Thermodynamic assessments of the Cr-Si and Al-Cr-Si systems", J. Alloys and Compd, 708, pp.887~902 (2017)
- M. Chen, "Structural evolution and electrochemical behaviors of multilayer Al-Cr-Si-N coatings", Surf. Coat. Technol, 296, pp.33~39 (2016)
- D. P. Sekulic, "Dendritic growth in Al-Si alloys during brazing. Part 1 : Experimental evidence and kinetics", Int. J. Heat Mass Transf, 48, pp.2372~2384 (2005)
- K. M Chen, "Investigation of Al–Cr alloy targets sintered by various powder metallurgy methods and their particle generation behaviors in sputtering process", J. Alloys and Compd, 663, pp.52~59 (2016)
- C. hung, "Corrosion behavior and resistance of hotdip Al−Cr coated steel sheet under a salt corrosive environment", Met. Mater. Int., 149 (2005)