Eng
Ukr
Rus
Print
2016 №08 (05) DOI of Article
10.15407/tpwj2016.08.06
2016 №08 (07)

The Paton Welding Journal 2016 #08
TPWJ, 2016, #8, 29-35 pages
 
Microstructure and wear-resistant properties of WC/SS316L composite coatings prepared by supersonic laser deposition


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                      0957-798X (print)
Issue                       #8, 2016 (August)
Pages                      29-35
 
 
Authors
Bo Li1, 2, Zhihong Li1, 2, Lijing Yang1, 2 And Jianhua Yao1, 2
1Research Center of Laser Processing Technology and Engineering, Zhejiang University of Technology
18 Chaowang Str., 310014, Hangzhou, PRC. E-mail: libo1011@zjut.edu.cn
2Zhejiang Provincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment 18 Chaowang Str., 310014, Hangzhou, PRC. E-mail: laser@zjut.edu.cn
 
Abstract
Supersonic laser deposition (SLD) is a newly developed coating method which combines the supersonic powder jet found in cold spray (CS) with synchronous laser heating of the deposition zone. The addition of laser heat energy into CS enables a change in the thermodynamic state of impacting particles and substrate, thereby significantly lowering the critical deposition velocities required for effective coating formation and allowing the range of materials deposited to expand to higher strength materials which are of considerable engineering interest. This paper presents the ability of SLD technique to deposit hard metal matrix composite (MMC) coatings, such as WC/SS316L. The focus of this research is on the comparison between composite coatings produced with conventional CS and those produced with SLD. The microstructure evolution, mechanical deformation mechanisms, correlation between functional properties and process parameters were elaborated in detail. The experimental results show that with the assistance of laser irradiation, WC/SS316L composite coatings can be successfully deposited using SLD. The obtained coatings are superior to that processed with CS, because SLD can improve the deposition efficiency, coating density, interface bonding as compared to CS due to the softening of particle and substrate by laser irradiation. It can be found that SLD is capable of depositing high strength MMC coatings with good quality, thus exhibiting great potential in the field of metal 3D printing. 13 Ref., 1 Table, 8 Figures.
 
Keywords: supersonic laser deposition, metal matrix composite coating, microstructure, composition, wear-resistant property
 
 
Received:                06.12.15
Published:               03.10.16
 
 
References
  1. Papyrin, A., Kosarev, V., Klinkov, S. et al. (2007) Cold spray technology, 1–32. Elsevier.
  2. Champagne, V.K. (2007) The cold spray materials deposition process. Fundamentals and applications, 11–41. Woodhead Publ.
  3. Maev, R.G., Leshchynsky, V. (2008) Introduction to low pressure gas dynamic spray, 1–10. Wiley-VCH.
  4. Bray, M., Cockburn, A., O’Neill, W. (2011) The laser-assisted cold spray process and deposit characterization. Surface and Coating Techn., 203, 2851–2857. https://doi.org/10.1016/j.surfcoat.2009.02.135
  5. Lupoi, R., Sparkes, M., Cockburn, A. et al. (2011) High speed titanium coating by supersonic laser deposition. Materials Letter, 65, 3205–3207. https://doi.org/10.1016/j.matlet.2011.07.014
  6. Jones, M., Cockburn, A., Lupoi, R. et al. (2014) Solid-state manufacturing of tungsten deposits onto molybdenum substrates with supersonic laser deposition. Ibid., 134, 295–297. https://doi.org/10.1016/j.matlet.2014.07.091
  7. Olakanmi, E.O., Doyoyo, M. (2014) Laser assisted cold-spray corrosion- and wear-resistant coatings: A review. Thermal Spray Techn., 23, 765–785. https://doi.org/10.1007/s11666-014-0098-x
  8. Tlotleng, M., Akinlabi, E., Shukla, M. et al. (2015) Microstructural and mechanical evaluation of laser-assisted cold sprayed bio-ceramic coatings: Potential use for biomedical applications. Ibid., 24, 423–435. https://doi.org/10.1007/s11666-014-0199-6
  9. Li, B., Yang, L.J., Li, Z.H. et al. (2015) Beneficial effects of synchronous laser irradiation on the characteristics of cold-sprayed copper coatings. Ibid., 24, 836–847. https://doi.org/10.1007/s11666-015-0246-y
  10. Yao, J.H., Yang, L.J., Li, B. et al. (2015) Beneficial effects of laser irradiation on the deposition process of diamond/Ni60 composite coating with cold spray. Surface Sci., 330, 300–308. https://doi.org/10.1016/j.apsusc.2015.01.029
  11. Luo, F., Cockburn, A., Cai, D.B. et al. (2015) Simulation analysis of Stellite 6 particle impact on steel substrate in supersonic laser deposition process. Thermal Spray Techn., 24, 378–393. https://doi.org/10.1007/s11666-014-0176-0
  12. Luo, F., Cockburn, A., Lupoi, R. et al. (2012) Performance comparison of Stellite 6 deposited on steel using supersonic laser deposition and laser cladding. Surface and Coatings Techn., 212, 119–127. https://doi.org/10.1016/j.surfcoat.2012.09.031
  13. Assadi, H., Gartner, F., Stoltenhoff, H. et al. (2004) Bonding mechanism in cold gas spray. Acta Materialia, 51, 4379–4394. https://doi.org/10.1016/S1359-6454(03)00274-X

>