한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제16권5호
  • /
  • Pages.55-62
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  • 2017
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  • 1598-6721(pISSN)
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  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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용사 코팅된 그레이트바의 고온 내마모 특성 평가

Evaluation of High Temperature Abrasion Resistance of Spray-Coated Grate Bar

  • Cho, Hee-Keun (Mechnical Engineering Education Department, Andong National Univ.) ;
  • Ahn, Jin-Hyo (Research Department, Exto engineering Co. Ltd.)
  • 투고 : 2017.09.03
  • 심사 : 2017.09.15
  • 발행 : 2017.10.31
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초록

The grate bar, a component used in steel mills, is used in harsh environments where external disturbances such as high temperature, abrasion, corrosion, and impacts are present. Therefore, in this study, spray-coating was performed on the most severely affected surface to extend the lifetime of the grate bar. The thermal and mechanical properties of the sprayed coated bars were investigated based on the performances under abrasion, thermal shock, tension, and sand blasting, and the microstructures by microscope. By analyzing the thermal and mechanical properties of the uncoated original grate bar and coated grate bar and comparing them with one another, the physical performance improvement of the coated grate bar can be verified.

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참고문헌

  1. Wolf, W., Schulz, R., Savoie, S., Bolfarini, C., Kiminami, C. S. and Botta, W. J., "Structural Mechanical and Thermal Characterization of an Al-Co-Fe-Cr Alloy for Wear and Thermal Barrier Coating Applications," Surface & Coatings Technology, Vol. 319, No. 15, pp. 241-248, 2017. https://doi.org/10.1016/j.surfcoat.2017.03.066
  2. Kyaw, S., Jones, A., Jepson M. A. E., Hyde, T. and Thomson, R. C., "Effects of Three-Dimensional Coating Interfaces on Thermo-Mechanical Stresses Within Plasma Spray Thermal Barrier Coatings," Materials & Design, Vol. 125, No. 5, pp. 189-204, 2017. https://doi.org/10.1016/j.matdes.2017.03.067
  3. Bumgardner, C., Croom, B. and Li, X., "High-temperature Delamination Mechanisms of Thermal Barrier Coatings: in-situ Digital Image Correlation and Finite Element Analysis," Acta Materialia, Vol. 128, No. 15, pp. 54-63, 2017. https://doi.org/10.1016/j.actamat.2017.01.061
  4. Kim, D. J., Shin, I. H., Koo, J. M., Seok, C. S. and Kim, M. Y., "Evaluation on the Delamination Life of Isothermally Aged Plasma Sprayed Thermal Barrier Coating," Transactions of the Korean Society of Mechanical Engineers A, Vol. 33, No. 2, pp. 162-168, 2009. https://doi.org/10.3795/KSME-A.2009.33.2.162
  5. Gell, M., Xie, L. H., Jordan, E. P. and Padture, N., "Mechanisms of Spallation of Solution Precursor Plasma Spray Thermal Barrier Coatings," Journal of Surface and Coating Technology, Vol. 188, pp. 101-106, 2004.
  6. Jang, J. H., Xu, Z., Kim, H. J., Kim, N. K. and Lyu, S.. K., "A Study on the Coating Characteristics of SCM415 Steel," Journal of the Korean Society of Manufacturing Process Engineers , Vol. 10, No. 2, pp. 117-123, 2011.
  7. Cho, H. K. and Ahn, J. H., "Evaluation of High-Temperature Oxidation, Corrosion and Wear Resistance of Top-Coated Grate Bar," Journal of the Korean Society for Precision Engineering, in Press.
  8. Lee, D. Y. and Kim, W. B., "A Study on Surface Roughness and Wear Characteristics in SCM420," Proc. of the KSMPE 2012 Fall Conference, pp. 87, 2012.
  9. Bolelllli, G., Cannillo, V., Lusvarghi, L. and Manfredini, T., "Wear Behavior of Thermally Sprayed Ceramic Oxide Coatings," Journal of Wear, Vol. 261, No. 11, pp. 1298-1315, 2006. https://doi.org/10.1016/j.wear.2006.03.023
  10. Jang, J. H., Kim, H. J., Kim, N. K., Zang, Q., and Lyu, S. K., "A Study on the Friction and Wear Characteristics of Cr-interrelatedness & WC/C Coating SCM415 Steel", Journal of the Korean Society of Manufacturing Process Engineers , Vol. 8, No. 4, pp. 122-128, 2009.
  11. Jang, J. H. etc., "A Study on the Friction and Wear Characteristics of TiAlN+WC/C Multilayer Coating of SCM415 Steel", Journal of the Korean Society of Manufacturing Process Engineers , Vol. 9, No. 2, pp. 40-46, 2010.