Browse > Article
http://dx.doi.org/10.4191/kcers.2012.49.3.247

Effect of Na2P2O7 Electrolyte and Al Alloy Composition on Physical and Crystallographical Properties of PEO Coating Layer : II. Crystallographic Analysis of PEO Layer  

Kim, Bae-Yeon (Department of Advanced Materials Engineering, University of Incheon)
Kim, Jeong-Gon (Department of Advanced Materials Engineering, University of Incheon)
Lee, Deuk-Yong (Department of Materials Engineering, Daelim University College)
Kim, Yong-Nam (Material Testing Center, Korea Testing Laboratory)
Jeon, Min-Seok (Material Testing Center, Korea Testing Laboratory)
Kim, Sung-Youp (MST Technology)
Kim, Kwang-Youp (MST Technology)
Publication Information
Journal of the Korean Ceramic Society / v.49, no.3, 2012 , pp. 247-252 More about this Journal
Abstract
Crystal structure and chemical compositions of Plasma electrolytic oxidized layer of A-1100, A-2024, A-5052, A-6061, A-6063, A-7075, ACD-7B and ACD-12 were investigated. The electrolyte for plasma electrolytic oxidation was mixture of distilled water, $Na_2P_2O_7$, Cu, Cr metal salts and KOH. ${\eta}$-Alumina, as well as ${\alpha}$-alumina, was main crystal phase. Another crystals such as $(Al_{0.948}Cr_{0.052})_2O_3$ and $(Al_{0.9}Cr_{0.1})_2O_3$ were also formed in the oxide layer. It was thought that the effect of electrolyte compositions on the physical properties and crystal system of PEO layers was greater than the effect of Al alloy composition variation.
Keywords
PEO; Coating; Crystal structure; Phosphate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 A.L. Yerokhin, X. Nie, A. Leyland, A. Matthews, and S.J. Dowey, "Plasma Electrolysis for Surface Engineering," Surf. Coat. Technol., 122 73-93 (1999).   DOI   ScienceOn
2 X. Nie, A. Leyland, H.W. Song, A.L. Yerokhin, S.J. Dowey, and A. Matthews, "Thickness Effects on the Mechanical Properties of Micro-arc Discharge Oxide Coatings on Aluminum Alloys," Surf. Coat. Technol., 116-119 1055-60 (1999).   DOI   ScienceOn
3 X. Nie, E.I. Meltis, J.C. Jiang, A. Leyland, A.L. Yerokhin, and A. Matthews, "Abrasive Waer/corrosion Properties and TEM analysis of $Al_2O_3$ Coatings Fabricated using Plasma Electrolysis," Surf. Coat. Technol., 149 245-51 (2002).   DOI
4 A.L. Yerokin, A. Shatrov, V. Samsonov, P. Shahkov, A. Pilkington, A. Leyland, and A. Matthews, "Oxide Ceramic Coatings on Aluminium Alloys Produced by a Pulsed Bipolar Plasma Electrolytic Oxidation Process," Surf. Coat. Technol., 199 150-57 (2005).   DOI   ScienceOn
5 H. Kalkanci and S.C. Kurnaz, "The Effect of Process Parameters on Mullite-based Plasma Electrolytic Oxide Coatings," Surf. Coat. Technol., 203 15-22 (2008).   DOI   ScienceOn
6 F.-Y. Jin, K. Wang, M. Zhu, L.-R. Shen, J. Li, H.-H. Hong, and P. K. Chu, "Infrared Reflection by Alumina Films Produced on Aluminum Alloy by Plasma Electrolytic Oxidation," Mater. Chem. Phys., 114 398-401 (2009).   DOI
7 Y.-J. Oh, J.-I. Mun, and J.-H. Kim, "Effect of Alloying Elements on Microstucture and Protective Proties of $Al_2O_3$ Coatings Formed on Aluminum Alloy Substrates by Plasma Electrolysis," Surf. Coat. Technol., 204 141-48 (2009).   DOI
8 G. Lv, W. Gu, H.Chen, W. Feng, M. L. Khosa, L. Li, E. Niu, G. Zhang, and S.-Z. Yang, "Characteristic of Ceramic Coatings on Aluminum by Plasma Electrolytic Oxidation in Silicate and Phosphate Electrolyte," Appl. Surf. Sci., 253 2947-52 (2006).   DOI   ScienceOn
9 W. Xue, Z. Deng, R. Chen, T. Zhang, and H. Ma, "Microstructure and Properties of Ceramic Coatings Produced on 2024 Aluminum Alloy by Microarc Oxidation," J. Mater. Sci., 36 2615-19 (2001).   DOI
10 J. Tian, Z. Luo, S. Qi, and X. Sun, "Structure and Antiwear Behavior of Micro-arc Oxidized Coatings on Alluminum Alloy," Surf. Coat. Technol., 154 1-7 (2002).   DOI   ScienceOn
11 E. Arslan, Y. Totik, E.E. Demirci, Y. Vangolu, A. Alsaran, and I. Efeoglu, "High Temperature wear Behavior of Aluminum Oxide Layers by AC Micro Arc Oxidation," Surf. Coat. Technol., 204 829-33 (2009).   DOI
12 G. Sundararajan and L. Rama Krishna, "Mechanisms Underlying the Formation of Thick Alumina Coatings Through the MAO Coating Technology," Surf. Coat. Technol., 167 269-77 (2003).   DOI   ScienceOn
13 J.A. Curran and T.W. Clyne, "The Thermal Conductivity of Plasma Electrolytic Oxide Coatings on Aluminum and Magnesium," Surf. Coat. Technol., 197 177-83 (2005).   DOI
14 J.A. Curran and T.W. Clyne, "Thermo-physical Properties of Plasma Electrolytic Oxide Coatings on Aluminum," Surf. Coat. Technol., 199 168-76 (2005).   DOI
15 K. Wang, B.H. Koo, C.G. Lee, Y.J. Kim, S. Lee, and E. Byon, "Effects of Hybrid Voltages on Oxide Formation on 6061 Al-Alloys During Plasma Electrolytic Oxidation," Chin. J. Aeronautics, 22 564-68 (2009).   DOI
16 K. Wang, B.H. Koo, C.G. Lee, Y.J. Kim, S. Lee, and E. Byon, "Effects of Electrolytes Variation on Formation of Oxide Layers of 6061 Al alloys by Plasma Electrolytic Oxidation," Trans. Nonferrous Met. Soc. China, 19 866-70 (2009).   DOI
17 J.A. Curran, H. Kalkanci, Yu. Magurova, and T.W. Clyne, "Mullite-rich Plasma Electrolytic Oxide Coatings for Thermal Barrier Applications," Surf. Coat. Technol., 201 8683-87 (2007).   DOI   ScienceOn
18 B.-Y. Kim, D. Y. Lee, M. C. Shin, H.-G. Shin, B.-K. Kim, S. Y. Kim, and K. Y. Kim, "Effect of Al Alloy Composition on Physical and Crystallographical Properties of Plasma Electrolytic Oxidized Coatings II. Crystallographic Analysis of PEO layer," J. Kor. Ceram. Soc., 47 [4] 283-89 (2010).   DOI
19 W. Gu, G. Lv, H. Chen, G.-L. Chen, W.-R. Feng, and S.-Z. Yang, "Characterization of Ceramic Coatings Produced by Plasma Electrolytic Oxidation of Aluminum Alloy," Mater. Sci. Eng. A, 447 158-62 (2007).   DOI   ScienceOn
20 B.-Y. Kim, D. Y. Lee, Y.-N. Kim, M.-S. Jeon, W.-S. You, and K.-Y. Kim, "Effect of Al alloy Composition on Physical and Crystallographical Properties of Plasma Electrolytic Oxidized Coatings. I. Physical Properties of PEO layer," J. Kor. Ceram. Soc., 47 [4] 256-61 (2010).   DOI
21 R.J. Damani and P. Makroczy, "Heat Treatment Induced Phase and Microstructural Development in Bulk Plasma Sprayed Alumina," J. Eur. Ceram. Soc., 20 867-88 (2000).   DOI
22 I. Levin and D.G. Brandon, "Metastable Alumina Polymorph : Crystal Structures and Transition Sequences," J. Am. Ceram. Soc., 81 1995-2012 (1998).
23 I. Levin, L.A. Bendersky, D.G. Brandon, and M. Rhle, "Cubic to Monoclinic Phase Transformations in Alumina," Acta. Mater., 45 [9] 3659-69 (1997).   DOI   ScienceOn
24 C. Ruberto, "Metastable Alumina from Theory: Bulk, Surface, and Growth of ${\kappa}-Al_2O_3$," Thesis of Ph. D., Gteborg Univ., Sweden, 2001.
25 H.M. Nykyforchyn, M.D. Klapkiv, and V.M. Posuvailo, "Properties of Synthesised Oxide-ceramic Coatings in Electrolyte Plasma on Aluminum Alloys," Surf. Coat. Technol., 100-101 219-221 (1998).   DOI