Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Effect of Post Heat Treatment on the Microstructure and Mechanical Properties of BCuP-5 Filler Metal Coating Layers Fabricated by High Velocity Oxygen Fuel Thermal Spray Process on Ag Substrate

고속 화염 용사 공정으로 제조된 BCuP-5 필러 금속 코팅층/Ag 기판 클래드 소재의 후열처리에 따른 미세조직 및 기계적 특성 변화

  • Park, So-Yeon (Department of Materials Science and Engineering, Inha University) ;
  • Youn, Seong-June (Department of Materials Science and Engineering, Inha University) ;
  • Park, Jae-Sung (LT Metal LTD.) ;
  • Lee, Kee-Ahn (Department of Materials Science and Engineering, Inha University)
  • Received : 2022.07.04
  • Accepted : 2022.08.03
  • Published : 2022.08.28
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Abstract

A Cu-15Ag-5P filler metal (BCuP-5) is fabricated on a Ag substrate using a high-velocity oxygen fuel (HVOF) thermal spray process, followed by post-heat treatment (300℃ for 1 h and 400℃ for 1 h) of the HVOF coating layers to control its microstructure and mechanical properties. Additionally, the microstructure and mechanical properties are evaluated according to the post-heat treatment conditions. The porosity of the heat-treated coating layers are significantly reduced to less than half those of the as-sprayed coating layer, and the pore shape changes to a spherical shape. The constituent phases of the coating layers are Cu, Ag, and Cu-Ag-Cu3P eutectic, which is identical to the initial powder feedstock. A more uniform microstructure is obtained as the heat-treatment temperature increases. The hardness of the coating layer is 154.6 Hv (as-sprayed), 161.2 Hv (300℃ for 1 h), and 167.0 Hv (400℃ for 1 h), which increases with increasing heat-treatment temperature, and is 2.35 times higher than that of the conventional cast alloy. As a result of the pull-out test, loss or separation of the coating layer rarely occurs in the heat-treated coating layer.

Keywords

Acknowledgement

본 연구는 산업통상자원부의 첨단 신소재 기반 3D 프린팅 전문인력양성 사업(P0002007)의 지원으로 수행되었으며 이에 감사드립니다.

References

  1. H. G. Kang, Y. S. Kang and J. S. Lee: J. Powder Mater., 13 (2006) 18.
  2. F. Findik and H. Uzun: Mater. Des., 24 (2003) 489.
  3. J. H. Zhu and H. Ghezel-Ayagh: Int. J. Hydrog. Energy., 42 (2017) 24278.
  4. Y. Zhang, B. Song, X. Zhao and Y. Shi: Nano Mater. Sci., 1 (2019) 208.
  5. H. J. Kim: Korea, KR No. 1019970035472 (1997).
  6. H. Yu, Y. Sun, S. P. Alpay and M. Aindow: J. Mater. Sci., 50 (2015) 324.
  7. Y. Li, C. Wang, Z. Peng, J. Yan and X. Liu: Trans. Nonferrous Met. Soc. China, 21 (2011) s394.
  8. G. Straffelini and M. Federici: Coat., 10 (2020) 886.
  9. J. Yu, X. Liu, Y. Yu, H. Li, P. Liu, K. Huang and R. Sun: Coat, 12 (2022) 828.
  10. Y. A. Joo, Y. H. Cho, J. S. Park and K. A. Lee: J. Powder Mater., 29 (2022) 226.
  11. Y. Lu, R. Ma and Y. Wang: Mater. Sci. Technol., 34 (2018) 862.
  12. D. W. Sul, B. H. Kim, Y. W. Rheem, M. S. Jeong and D. S. Suhr: Mater. Sci. Technol., 56 (2018) 113.
  13. ASM Intl., Metals Handbook Vol. 8: Metallography, Structures and Phase Diagrams, ASM Intl., Ohio (1973) 435.
  14. D. Janovszky, K. Tomolya, A. Sycheva, P. Pekker and A.Roosz: J. Alloys Compd., 586 (2014) S194.
  15. H. G. Scott: J. Mater. Sci., 10 (1975) 1527.
  16. P. Bansal, P. H. Shipway and S. B. Leen: J. Therm. Spray Technol., 15 (2006) 570.
  17. S. Itoh, K. Hokamoto and M. Fujita: MSF, 465-466 (2004) 427.
  18. G. Ynag, X. Fu and J. Zhou: Opt. Soc. Am. B, 30 (2013) 282.
  19. C. J. Kong, P. D. Brown, S. J. Harris and D. G. McCartney: Mater. Sci. Eng. A, 403 (2005) 205.
  20. D. Zhang, D. G. McCartney and S. J. Harris: Mater. Sci. Eng. A, 344 (2003) 45.
  21. I. Yamauchi, N. Veno, M. Shimaoka and I. Ohnaka: J. Mater. Sci., 33 (1998) 371.
  22. G. Radnoczi, E. Bokanyi, Z. Erdelyi and F. Misjaka: Acta Mater., 123 (2017) 82.
  23. S. J. Harris, D. G. McCartney, A. J. Horlock and C. Perrin: Mater. Sci. Forum, 331-337 (2000) 519.
  24. P. Coddet, C. Verdy, C. Coddet and F. Debray: Mater. Sci. Eng. A, 637 (2015) 40.
  25. M. B. Karamis, A. Tasdemirci and F. Nair: J. Mater. Process. Tech., 141 (2003) 302.