Evaluation of the surface activation of stainless steels using sandblasting and mechanized for the application of coatings covered by atmospheric plasma spray (APS)
DOI:
https://doi.org/10.33131/24222208.302Keywords:
APS, Mechanizing Process, Surface Activation, Sandblasting, CoatingsAbstract
This work evaluated the surface preparation of metallic substrates with alumina (sandblasting SB) and by the use of cutting tools (HC) on stainless steels AISI 304, after which an APS coating was applied. The roughness station of the National University of Colombia Sede Medellin was used with the support of the GTS group of surfaces, to analyze the texture and to compare the profiles of roughness and its respective parameters of roughness, taking as reference parameters the most heavily used in the national metal-mechanical context. As a result of running both techniques on these materials, it is evident that there is a significant effect on surface activation when sandblasting and machining are combined. The activation of the surface due to the parameters that increase surface roughness results in decreasing the values of the polar component of surface free energy.
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