Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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Corrosion Resistance of Al6061-T6 by Organic/Inorganic Hybrid Coating Solution

유/무기하이브리드 코팅액에 의한 Al6061-T6의 내식 특성

  • Mi-Hyang Park (Dept. of Materials Science and Engineering, Pukyong National University) ;
  • Ki-Hang Shin (Dept. of Materials Science and Engineering, Pukyong National University) ;
  • Byoung-Chul Choi (Department of Energy and Chemical Process, Petro Chemical Training Center of Korea Polytechnics) ;
  • Byung-Hyun Ahn (Dept. of Materials Science and Engineering, Pukyong National University) ;
  • Gum-Hwa Lee (Dept. of Marine Design Convergence Engineering, Pukyong National University) ;
  • Ki-Woo Nam (Dept. of Materials Science and Engineering, Pukyong National University)
  • 박미향 (부경대학교 재료공학과) ;
  • 신기항 (부경대학교 재료공학과) ;
  • 최병철 (한국폴리텍대학 석유화학공정기술교육원 석유화학공정과) ;
  • 안병현 (부경대학교 재료공학과) ;
  • 이금화 (부경대학교 마린융합디자인공학과) ;
  • 남기우 (부경대학교 재료공학과 및 마린디자인융합디자인공학과)
  • Received : 2023.06.09
  • Accepted : 2023.06.27
  • Published : 2023.08.31
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Abstract

In this study, the corrosion resistance by salt spray was evaluated using A6061-T6 for an electric vehicle battery pack case coated with an organic/inorganic hybrid solution. The lowest curing temperature of 190 ℃ resulted in significant corrosion and pitting. Meanwhile, no corrosion was observed in the coated specimens at 210 ℃ and 230 ℃ except at 210 ℃ - 6 min and 8 min. The surface of the as-received coating specimen observed by FE-SEM exhibited streaks and dents in the rolling direction, but the coating surface was clean. On the 190 ℃ - 6 min coating specimen, which had a lot of corrosion, rolling streaks spread, and dents were caused by corrosion. The 200 ℃ - 12 min coating specimen did not show corrosion, but it showed an etched surface. In the line profile, Si, the main component of the coating solution, was detected the most, and Ti was also detected. In the coating specimens with salt spray, O increased and Si decreased, regardless of corrosion. The peeling rate by adhesion evaluation was 26 - 87% for the 190 ℃ coating specimen, 4 - 83% for the 210 ℃ coating specimen, and 94 - 100% for the 230 ℃ coating specimen. The optimal curing conditions for the coating solution used in this study were 210 ℃ for 10 min.

Keywords

Acknowledgement

이 논문은 "2019학년도 부경대학교 연구년(II) 교원 지원사업"에 의하여 연구되었음.

References

  1. Cheap Car Insurance, "The Environmentally Friendly Car", (2021).
  2. B. Yacobucci, "Alternative Fuel and Advanced Vehicle Technology Incentives: A Summary of Federal Programs," Congressional Research Service, pp. 1-40, (2021).
  3. Ministry of Commerce, Industry and Energy, "The 4th basic plan for supplying eco-friendly vehicles (2021-2025)," pp. 1-62, (2021).
  4. International Agency For Research on Cancer, "Some inorganic and organometallic compounds; IARC monographs on the evaluation of carcinogenic risk of chemicals to man," IARC Publications, (1973).
  5. H. J. Gibb, P. S. J. Lees, P. F. Pinsky, B. C. Rooney, "Lung cancer among workers in chromium chemical production," Am. J. Ind. Med. vol. 38, pp. 115-126, (2000). https://doi.org/10.1002/1097-0274(200008)38:2<115::AID-AJIM1>3.0.CO;2-Y
  6. D. H. Jo, M. J. Kwon, J. S. Kim, "Chromate-free Hybrid Coating for Corrosion Protection of Electrogalvanized Steel Sheets," Corrosion Science and Technology, vol. 11, pp. 15-19, (2012). https://doi.org/10.14773/cst.2012.11.1.015
  7. F. Deflorian, S. Rossi, L. Fedrizzi, P. L. Bonora, "EIS study of organic coating on zinc surface pretreated with environmentally friendly products," Progress in Organic Coatings, vol. 52, pp. 271-279, (2005). https://doi.org/10.1016/j.porgcoat.2004.04.005
  8. W. A. Zoubi, J. H. Min, Y. G. Ko, "Hybrid organic-inorganic coatings via electron transfer behaviour, Scientific Reports," vol. 7, Article number: 7063, (2017).
  9. K. W. Nam, J. R. Kim, C. M. Choi, "Corrosion Resistance of Cold Rolled Steel coated Organic/inorganic Hybrid Coating Solution According to Heat Treatment Temperature," Journal of Ocean Engineering and Technology, vol. 25, pp. 56-59, (2011). https://doi.org/10.5574/KSOE.2011.25.6.056
  10. H. K. Kim, A. Irodakhon, K. W. Nam, "The study for adsorption of indoor pollutants by ocher and diatomite filter," J. Korean Society of Industry Convergence, vol. 23, pp. 581-589, (2020).
  11. T. Ogura, K. Horikawa, Y. Kitani, M. Miara, S. N. Kim, E. Kobayashi, T. Sato, H. Kobayashi, "Effect of High-Speed Impact Compression on Natural Aging and Subsequent Artificial Aging of a 6061 Aluminum Alloy," Materials Transactions, vol. 57, pp. 1282-1286, (2016). https://doi.org/10.2320/matertrans.L-M2016819
  12. T. Sakiyama, G. Murayama, Y. Naito, K. Saita, Y. Miyazaki H. Oikawa, T. Nose, "Dissimilar Metal Joining Technologies for Steel Sheet and Aluminum Alloy Sheet in Auto Body," Nippon Steel Technical Report, no. 103, pp. 91-98, (2013).
  13. M. C. Tuzemen, M. Agaoglu, M Karakaya, E. Salamci1, G. Kucukturk, "Design and Analysis of Lightweight Automotive Component for Turbocharger Units," Manufacturing Science and Technology, vol. 3, pp. 278-285, (2015). https://doi.org/10.13189/mst.2015.030514
  14. Y. Chen, Y. Kang, Y. Zhao, L. Wang, J. Liu, Y. Li, Z.Liang, X. He, X. Li, N. Tavajohi, B. Li, "A review of lithium-ion battery safety concerns: The issues, strategies, and testing standards," Journal of Energy Chemistry, vol. 59, pp. 83-99, (2021).
  15. D. S. Bae, J. S. Kawk, J. K. Lee, Effect of surface treatment and fatigue of STS410 materials, Journal of The Korean Society of Industry Convergence, vol. 22, pp. 987-992, (2022).
  16. KS D 9502, "Neutral, acetic acid and copper-accelerated acetic acid salt spray," (2009).
  17. T. Nsongo and M. Gillett, "Adhesion characterization of titanium and titanium nitride thin coatings on metals using the scratch test," International J. Adhesion and Adhesives, vol. 15, pp. 191-196, (1995). https://doi.org/10.1016/0143-7496(95)91631-F
  18. ASTM D3359-09, Standard test methods for measuring adhesion by tape test.