Arc Spraying of Nanostructured Wires on Steel Surfaces: Influence of Coating Thickness on Microstructure and Fracture Toughness

Abstract:

nanostructured coating materials become demanding, since it improves the mechanical properties, such as hardness, through grain refinement. One of the methods of producing nanostructured coatings is to use an arc spray coating process using nanostructured wires. Although the arc spraying process is well developed, the influence of nanoparticles on the fracture toughness of the coating surface has not been examined in details. Consequently, in the present study, arc spraying of nanostructured wires on carbon steel surface is carried out. The influence of coating thickness on the microstructure and fracture toughness of the coating is investigated. It is found that the self-annealing due to large coating thicknesses has a noticeable effect on the microstructure and fracture toughness.

• Periodical: Advanced Materials Research (Volume 445)
• Pages: 803-808
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.445.803
• Online since: January 2012
• Authors: A. Askandarani, M.S.J. Hashmi, Bekir Sami Yilbas
• Keywords: Arc Spray, Coating, Fracture Toughness

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