Experimental Studies on Adherence Resistance of Thermally Sprayed Metallic Coatings

Abstract:

The paper aims to determine, through experiments, the necessary force for detaching the deposited layer (SD) from the support layer (SB). The thermal sprayed coating was formed by successive deposition of two sub-layers, one for anchorage and the second for corrosion resistance. Shear adhesion strength tests were performed on a specialized stand, while force (F_ad) and displacement (x) values were recorded with a data acquisition system. The variation curves, F_ad = f (x), outline the evolution of the detachment process of the sprayed layer and the two main components of the deformation process: slip and breakage.

• Periodical: Applied Mechanics and Materials (Volume 657)
• Pages: 271-275
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.657.271
• Online since: October 2014
• Authors: Iuliana Silvia Georgescu*, Alin Cazac, Elena Raluca Baciu, Costică Bejinariu, Constantin Baciu, Stefan Lucian Toma
• Keywords: Adherence Resistance, Arc Spraying, Macroscopic Analysis, Shearing Mechanical Tests

References

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[2] L. Pawlowski, Thermal Spray Coatings-Second Edition, Wiley & Sons Ltd., England, (2008).

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[4] B.T. Landkammer, Research on Obtaining and Characterization of Metal Layers Deposited by Arc Spraying, PhD thesis, Gheorghe Asachi, Technical University of Iaşi, (2013).

[5] **, DIN 27201-10/2005, State of Railway Vehicles. Basic Principles and Production Technology – Thermal Spraying (2005).