Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Post Heat Treatment on Wear Characteristics of Thermally Sprayed Co-based Self-flux Alloy Coating

코발트기 자융성합금 코팅의 마모특성에 미치는 후열처리의 영향

  • Lee, Jae-Hong (Graduate School, Pukyong National University) ;
  • Kim, Yeong-Sik (Department of Mechanical & Automotive Engineering, Pukyong National University)
  • Received : 2013.09.25
  • Accepted : 2013.12.20
  • Published : 2014.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

This article describes effect of post heat treatment on wear characteristics of thermally sprayed Co-based self-flux alloy coating. Co-based self-flux alloy coatings were deposited on steel substrates using a flame spray process. Post heat treatments were carried out at 800, 900, 1000 and $1100^{\circ}C$ for 30min in a vacuum chamber. For analysis of effect of post heat treatment on mechanical properties, wear test and hardness test were performed for post heat-treated coating specimen. Microstructures of heat treated coating layer and wear track were examined using SEM and EDS. Wear loss and hardness became lower with increasing post heat treatment temperature.

Keywords

References

  1. M. Rosso and A. Bennani, 1998, "Studies of New Applications of Ni-based Powders for Hardfacing Processes", PM World Congress Thermal Spraying/Spray Forming, pp. 524-530.
  2. M. W. Bae, B. H. Park and J. Hwa, 2012, "A Study on Improvement of Duratbility for Run-out Table Roller with Hot Rolling by Porous Self-fluxing Alloy Coating", Journal of the Korean Society of Marine Engineering, pp. 276-285.
  3. H. Akebono, J. Komotori and M. Shimizu, 2008, "Effect of coating microstructure on the fatigue properties of steel thermally sprayed with Ni-based self-fluxing alloy", International Journal of Fatigue, Vol. 30, No. 5, pp. 814-821. https://doi.org/10.1016/j.ijfatigue.2007.07.003
  4. H. J. Kim, S. Y. Hwang, C. H. Lee and P. Juvanon, 2003, "Assessment of wear performance of flame sprayed and fused Ni-based coatings", Journal of Surface and Coatings Technology, Vol. 172, No. 2-3, pp. 262-269. https://doi.org/10.1016/S0257-8972(03)00348-7
  5. H. Chen, C. Xu, J. Qu, I. M. Hutchings, P. H. Shipway and J. Liu, 2005, "Sliding wear behaviour of laser clad coatings based upon a nickel-based self-fluxing alloy co-deposited with conventional and nanostructured tungsten carbide-cobalt hardmetals", Journal of Wear, Vol. 259, No. 7-12, pp. 801-806. https://doi.org/10.1016/j.wear.2005.02.066
  6. J. H. Lee and Y. S. Kim, 2013, "Process Optimization for Co-based Self-flux Alloy Coating By Taguchi Method", Abstract Book of 2013 Spring Conference of KSME, pp. 158-159.
  7. K. Sakata, K. Nakano, Y. Matsubara and K. Ogi, 2007, "Microstructure Control of Thermallly Sprayed Co-Based Self-fluxing Alloy Coatings by diffusion Treatment", Journal of Thermal Spray Technology, Vol. 16 No. 5-6, pp. 991-997. https://doi.org/10.1007/s11666-007-9125-5
  8. K. T. Kim, Y. S. Kim and M. S. Oh, 2007, "Effect of Heat Treatment Conditions on the Microstructure and Wear Behavior of Ni-based Self-flux Alloy Coatings", Journal of The Korean Society for Power System Engineering, Vol. 11, No. 1, pp. 121-126.
  9. R. G. Bayer, 2002, "Wear Analysis for Engineers", HNB Publishing.