Effect of form of applied current on the formation behavior of PEO films on Al6082 alloy
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This work is concerned with the formation behavior of PEO (Plasma Electrolytic Oxidation) films on Al6082 alloy under the application of direct current (DC) and alternating current (AC) in an alkaline solution. Arc initiation voltage became much lower by the application of AC than DC, and arc initiation time became shorter under DC than AC. The number of pores present in the PEO films was much larger than that on the surface, irrespective of DC and AC. It was also found that the number of pores in the PEO films formed under AC was more than that under DC and the size of pores is smaller under AC than DC. During the formation of PEO films, a lot of heat was generated and solution temperature increased more rapidly under DC than under AC which is attributed to high PEO film formation voltage under DC than AC.
Abstract
This work is concerned with the formation behavior of PEO (Plasma Electrolytic Oxidation) films on Al6082 alloy under the application of direct current (DC) and alternating current (AC) in an alkaline solution. Arc initiation voltage became much lower by the application of AC than DC, and arc initiation time became shorter under DC than AC. The number of pores present in the PEO films was much larger than that on the surface, irrespective of DC and AC. It was also found that the number of pores in the PEO films formed under AC was more than that under DC and the size of pores is smaller under AC than DC. During the formation of PEO films, a lot of heat was generated and solution temperature increased more rapidly under DC than under AC which is attributed to high PEO film formation voltage under DC than AC.
참고문헌 (23)
- L. G. Rovira, "Assessment of the corrosion resistance of self-ordered anodic aluminum oxide (AAO) obtained in tartaric-sulfuric acid (TSA)", Surf. Coat. Technol, 399, pp.126131~126141 (2020)
- 문성모, "황산 용액에서 Al6061 합금의 아노다이징 피막 형성거동", 한국표면공학회지, 51(6), pp.393~399 (2018), 한국표면공학회[DOI]
- 문성모, "황산용액에서 Al7075 합금 표면의 양극산화피막 형성거동", 한국표면공학회지, 47(4), pp.155~161 (2014), 한국표면공학회[DOI]
- S. Moon, "Anodic oxidation of Mg-Sn alloys in alkaline solutions", Corros. Sci, 65, pp.494~501 (2012)
- 문성모, "Lateral growth of PEO films on Al7050 alloy in 0.1 M NaAlO2", 한국표면공학회지, 54(4), pp.200~208 (2021), 한국표면공학회
- 김주석, "알루미늄 2024 합금의 플라즈마 전해산화 피막의 형성 거동 및 피막 물성에 미치는 인산나트륨 농도의 영향", 한국표면공학회지, 53(6), pp.351~359 (2020), 한국표면공학회
- 문성모, "Lateral Growth of PEO Films on Al1050 Alloy in an Alkaline Electrolyte", 한국표면공학회지, 50(1), pp.10~16 (2017), 한국표면공학회[DOI]
- 문성모, "PEO Film Formation Behavior of Al1050 Alloy Under Direct Current in an Alkaline Electrolyte", 한국표면공학회지, 50(1), pp.17~23 (2017), 한국표면공학회[DOI]
- 박철기, "Al6061합금의 PEO 피막 형성에 미치는 AC 전류밀도의 영향", 한국표면공학회지, 52(3), pp.138~144 (2019), 한국표면공학회[DOI]
- 이정형, "해양환경용 알루미늄 합금의 플라즈마 전해 산화 시 표면 특성에 관한 불화칼륨(KF)의 영향", 한국표면공학회지, 49(3), pp.280~285 (2016), 한국표면공학회[DOI]
- 이정형, "Characterization of Ceramic Oxide Layer Produced on Commercial Al Alloy by Plasma Electrolytic Oxidation in Various KOH Concentrations", 한국표면공학회지, 49(2), pp.119~124 (2016), 한국표면공학회[DOI]
- E. Matykina, "Plasma electrolytic oxidation of pre-anodized aluminium", Corros. Sci, 51, pp.2897~2905 (2009)
- S. Moon, "Generation mechanism of microdischarges during plasma electrolytic oxidation of Al in aqueous solutions", Corros. Sci, 51, pp.1506~1512 (2009)
- 권두영, "AZ91 마그네슘 합금의 PEO 피막 형성거동에 미치는 HF전처리의 영향", 한국표면공학회지, 54(4), pp.184~193 (2021), 한국표면공학회
- 권두영, "AZ91 마그네슘 합금의 플라즈마 전해산화 피막 형성 및 물성에미치는 0.1 M NaOH + 0.05 M NaF 용액 중 Na2SiO3 농도의 영향", 한국표면공학회지, 53(2), pp.59~66 (2020), 한국표면공학회
- 문성모, "AZ31 Mg합금의 PEO피막 형성거동에 미치는 인산나트륨 농도의 영향", 한국표면공학회지, 52(5), pp.265~274 (2019), 한국표면공학회[DOI]
- 문성모, "Effect of NaOH Concentration on the PEO Film Formation of AZ31 Magnesium Alloy in the Electrolyte Containing Carbonate and Silicate Ions", 한국표면공학회지, 50(5), pp.308~314 (2017), 한국표면공학회[DOI]
- 권두영, "인산 및 규산 이온이 포함된 수용액에서 AZ31 마그네슘 합금의 플라즈마전해산화 피막의 구조에 미치는 수산화나트륨 농도의 영향", 한국표면공학회지, 49(1), pp.46~53 (2016), 한국표면공학회[DOI]
- 문성모, "Anodic Oxide Films Formed on AZ31 Magnesium Alloy by Plasma Electrolytic Oxidation Method in Electrolytes Containing Various NaF Concentrations", 한국표면공학회지, 49(3), pp.225~230 (2016), 한국표면공학회[DOI]
- 문성모, "Anodic Oxidation Behavior of AZ31 Magnesium Alloy in Aqueous Electrolyte Containing Various Na2CO3 Concentrations", 한국표면공학회지, 49(4), pp.331~338 (2016), 한국표면공학회[DOI]
- 문성모, "AZ31 마그네슘 합금의 플라즈마전해산화 피막 형성에 미치는 수산화 이온 및 규산 이온의 영향", 한국표면공학회지, 47(4), pp.147~154 (2014), 한국표면공학회[DOI]
- K.V. Nadaraia, "Some new aspects of the study of dependence of properties of PEO coatings on the parameters of current in potentiodynamic mode", Surf. Coat. Technol, 426, pp.127744~124452 (2021)
- G.-H. Lv, "Effects of current frequency on the structural characteristics and corrosion property of ceramic coatings formed on magnesium alloy by PEO technology", J. Mater. Proc. Technol, 208, pp.9~13 (2008)