Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Effect of Powder Preheating Temperature on the Properties of Cu based Amorphous Coatings by Cold Spray Deposition

저온분사로 제조된 Cu계 비정질 코팅층 특성에 미치는 분말 예열 온도의 영향

  • Cho, Jin-Hyeon (School of Advanced Materials Engineering, Andong National University) ;
  • Park, Dong-Yong (Tae-Kwang Tech.) ;
  • Lee, Jin-Kyu (Division of Advanced Materials Engineering, Kongju National University) ;
  • Lee, Kee-Ahn (School of Advanced Materials Engineering, Andong National University)
  • 조진현 (안동대학교 공과대학 신소재공학부 청정소재기술연구센터) ;
  • 박동용 ((주)태광테크 기술연구소) ;
  • 이진규 (공주대학교 신소재공학부) ;
  • 이기안 (안동대학교 공과대학 신소재공학부 청정소재기술연구센터)
  • Received : 2009.02.28
  • Published : 2009.11.25
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Abstract

Cu based amorphous ($Cu_{54}Zr_{22}Ti_{18}Ni_{6}$) powders were deposited onto Al 6061 substrates by cold spray process with different powder preheating temperatures (below glass transition temperature: $350^{\circ}C$, near glass transition temperature: $430^{\circ}C$ and near crystallization temperature: $500^{\circ}C$). The microstructure and macroscopic properties (hardness, wear and corrosion) of Cu based amorphous coating layers were also investigated. X-ray diffraction results showed that cold sprayed Cu based amorphous coating layers of $300{\sim}350{\mu}m$ thickness could be well manufactured regardless of powder preheating temperature. Porosity measurements revealed that the coating layers of $430^{\circ}C$ and $500^{\circ}C$ preheating temperature conditions had lower porosity contents (0.88%, 0.93%) than that of the $350^{\circ}C$ preheating condition (4.87%). Hardness was measured as 374.8 Hv ($350^{\circ}C$), 436.3 Hv ($430^{\circ}C$) and 455.4 Hv ($500^{\circ}C$) for the Cu based amorphous coating layers, respectively. The results of the suga test for the wear resistance property also corresponded well to the hardness results. The critical anodic current density ($i_{c}$) according to powder preheating temperature conditions of $430^{\circ}C$, $500^{\circ}C$ was lower than that of the sample preheated at $350^{\circ}C$, respectively. The higher hardness, wear and corrosion resistances of the preheating conditions of near $T_{g}$ and $T_{x}$, compared to the properties of below $T_{g}$, could be well explained by the lower porosity of coating layer.

Keywords

Acknowledgement

Supported by : 한국산업기술재단

References

  1. J. H. Kim, S. H. Yoon, H. T. Na, and C. H. Lee, J. Kor. Inst. Surf. Eng. 41, 220 (2008) https://doi.org/10.5695/JKISE.2008.41.5.220
  2. D. J. Jung, D. Y. Park, J. K. Lee, H. J. Kim, and K. A. Lee, J. Kor. Inst. Met. & Mater. 45, 333 (2008)
  3. W. L. Johnson, MRS Bull. 24, 42 (1999)
  4. A. Inoue, Acta Mater. 48, 279 (2000) https://doi.org/10.1016/S1359-6454(99)00300-6
  5. S. Y. Lee, H. S. Choi, G. Y. Kim, C. H. Lee, and Y. G. Kim, J. Kor. Inst. Met. & Mater. 42, 732 (2004)
  6. H. J. Kang, S. H. Ahn, J. S. Lee, and J. H. Lee, International Journal of Precision Engineering and Manufacturing 7, 55 (2006)
  7. T. H. Van Steenskiste, J. R. Smith, R. E. Teets, J. J. Moleski, D. W. Gorkiewicz, R. P. Tison, D. R. Marantz, K. A. Kowalsky, W. L. Riggs II, P. H. Zajchowski et al., Surf. and Coat. Tech. 111, 62 (1999) https://doi.org/10.1016/S0257-8972(98)00709-9
  8. T. Novoselova, P. Fox, R. Morgan, and W. O'Neill, Surf. and Coat. Tech. 200, 2775 (2006) https://doi.org/10.1016/j.surfcoat.2004.10.133
  9. S. V. Klinkov, V. F. Kosarev, and M. Rein, Aerospace Science and Technology 9, 582 (2005) https://doi.org/10.1016/j.ast.2005.03.005
  10. T. Schmidt, F. Gtner, and H. Kreye, Acta Mater. 54, 729 (2006) https://doi.org/10.1016/j.actamat.2005.10.005
  11. S. H. Yoon, S. K. Kim, and C. H. Lee, Journal of KWS. 25, 250 (2007)
  12. J. S. Kim, Y. M. Xiong, C. Lee, H. S. Choi, and H. J. Kim, Proceedings of Thermal Spray 2007, p.114 (2007)
  13. J. K. Lee, T. S. Kim, and J. G. Kim, J. Kor. Powder Metall. Inst. 14, 197 (2007) https://doi.org/10.4150/KPMI.2007.14.3.197
  14. T. S. Kim, J. K. Lee, H. J. Kim, and J. C. Bae, Trans. Mat. Process 14, 417 (2005) https://doi.org/10.5228/KSPP.2005.14.5.417
  15. H. J. Kim, J. H. Jang, D. H. Jung, and C. H. Lee, J. Kor. Inst. Met. & Mater. 44, 697 (2006)
  16. C. K. Kim, H. S. Lee, S. Y. Shin, J. C. Lee, D. H. Kim, and S. H. Lee, J. Kor. Inst. Met. & Mater. 42, 977 (2004)
  17. H. Mkinen, J. Lagerbom, P. Vuoristo, Proc. of 2006 International Thermal Spray Conference, p.163-168, May 15-18, Seattle, USA (2006)