Adhesion of HVOF-Sprayed WC-Co Coatings on 316L Substrates Processed by SLM

W. Tillmann, L. Hagen, C. Schaak, J. Liß, M. Schaper, K.-P. Hoyer, M.E. Aydinöz, K.-U. Garthe, Journal of Thermal Spray Technology 29 (2020) 1396–1409.

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Journal Article | Published | English
Author
Tillmann, Wolfgang; Hagen, Leif; Schaak, Christoph; Liß, J.; Schaper, MirkoLibreCat; Hoyer, Kay-PeterLibreCat; Aydinöz, Mehmet Esat; Garthe, Kai-UweLibreCat
Abstract
<jats:title>Abstract</jats:title><jats:p>Different studies have been demonstrated that the surface integrity of substrate bulk materials to be coated has a significant impact on the adhesion of thermally sprayed coatings. It is known that the surface integrity of parts processed by selective laser melting (SLM) differs from those obtained from bulk materials. Although 316L stainless steel is among the most investigated material for SLM, the adhesion of thermally sprayed coatings on 316L stainless steel substrates processed by SLM has not been studied yet. This study aims at evaluating the effect of various mechanical pre-treatments onto 316L stainless steel substrates processed by SLM and their effect on the adhesion of high velocity oxy-fuel (HVOF)-sprayed WC-Co coatings. To differentiate between topographical effects and residual stress-related phenomena, a stress-relief heat treatment of the SLM substrates served as a reference throughout the investigations. The differently pre-treated SLM substrates were investigated with regard to the surface roughness and residual stresses. For the HVOF-sprayed SLM composites, Vickers interfacial indentation tests were conducted to assess the resulting coating adhesion. The findings demonstrated that the HVOF-sprayed WC-Co coatings predominantly exhibit good adhesion to the SLM 316L substrates. However, it was found that the stress state in the SLM 316L substrate surface is more likely to affect the adhesion of the WC-Co coating, while the substrate surface roughness showed a marginal effect.</jats:p>
Publishing Year
Journal Title
Journal of Thermal Spray Technology
Volume
29
Issue
6
Page
1396-1409
LibreCat-ID

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Tillmann W, Hagen L, Schaak C, et al. Adhesion of HVOF-Sprayed WC-Co Coatings on 316L Substrates Processed by SLM. Journal of Thermal Spray Technology. 2020;29(6):1396-1409. doi:10.1007/s11666-020-01081-y
Tillmann, W., Hagen, L., Schaak, C., Liß, J., Schaper, M., Hoyer, K.-P., Aydinöz, M. E., & Garthe, K.-U. (2020). Adhesion of HVOF-Sprayed WC-Co Coatings on 316L Substrates Processed by SLM. Journal of Thermal Spray Technology, 29(6), 1396–1409. https://doi.org/10.1007/s11666-020-01081-y
@article{Tillmann_Hagen_Schaak_Liß_Schaper_Hoyer_Aydinöz_Garthe_2020, title={Adhesion of HVOF-Sprayed WC-Co Coatings on 316L Substrates Processed by SLM}, volume={29}, DOI={10.1007/s11666-020-01081-y}, number={6}, journal={Journal of Thermal Spray Technology}, publisher={Springer Science and Business Media LLC}, author={Tillmann, Wolfgang and Hagen, Leif and Schaak, Christoph and Liß, J. and Schaper, Mirko and Hoyer, Kay-Peter and Aydinöz, Mehmet Esat and Garthe, Kai-Uwe}, year={2020}, pages={1396–1409} }
Tillmann, Wolfgang, Leif Hagen, Christoph Schaak, J. Liß, Mirko Schaper, Kay-Peter Hoyer, Mehmet Esat Aydinöz, and Kai-Uwe Garthe. “Adhesion of HVOF-Sprayed WC-Co Coatings on 316L Substrates Processed by SLM.” Journal of Thermal Spray Technology 29, no. 6 (2020): 1396–1409. https://doi.org/10.1007/s11666-020-01081-y.
W. Tillmann et al., “Adhesion of HVOF-Sprayed WC-Co Coatings on 316L Substrates Processed by SLM,” Journal of Thermal Spray Technology, vol. 29, no. 6, pp. 1396–1409, 2020, doi: 10.1007/s11666-020-01081-y.
Tillmann, Wolfgang, et al. “Adhesion of HVOF-Sprayed WC-Co Coatings on 316L Substrates Processed by SLM.” Journal of Thermal Spray Technology, vol. 29, no. 6, Springer Science and Business Media LLC, 2020, pp. 1396–409, doi:10.1007/s11666-020-01081-y.

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