Wear Characterization of Thermal Sprayed and Fused Fe-Ni-Cr Alloy Coatings with the Addition of CeO2

Zhen Yu Zhang; Biao Chen; Bu Nv Liang; Peng Lin Zhang

doi:10.4028/www.scientific.net/AMR.239-242.35

Paper Titles

Effects of Annealing Parameters on Recrystallization of AZ31 Magnesium Alloy Processed by Continuous Rheo-Extrusion
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Performance of BaCo_0.7Fe_0.2Nb_0.1O_3-δ Membrane under CO₂-Containing Atmosphere for CCS Application
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Water Permeates in Ceramic Membrane Modified with Nano Inorganic Coating
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Facile Synthesis of Multifunctional Nanocomposites with Tunable Luminescent and Magnetic Properties
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Wear Characterization of Thermal Sprayed and Fused Fe-Ni-Cr Alloy Coatings with the Addition of CeO₂
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The Preparation, Characterization, and Photocatalytic Activities of Co-TiO₂
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Structure Evolution of the Atomized Powders of Fe-25Cr-3.9C Alloy with Addition of Ni and B Elements
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Annealing Treatment for Superplastic Forming of Twin Roll Casted AZ31 Magnesium Sheet
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Effect of Modified Graphene Addition on the Electrical Properties of Epoxy Resin Composite
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Wear Characterization of Thermal Sprayed and Fused Fe-Ni-Cr Alloy Coatings with the Addition of CeO₂

Abstract:

Fe-Ni-Cr alloy powders with CeO₂ were flame sprayed and fused on the surface of 1045 carbon steel substrate. The effect of CeO₂ on microstructure and tribological behavior of coatings were studied experimentally by means of scanning electron microscopy (SEM), field emission gun scanning electron microscopy (FEGSEM), energy dispersive spectroscopy (EDS) and wear tests. The results show that an adhered oxide debris layer was formed on the worn surface in friction which contributed to decreased wear. Wear rate of the material increased with the load, but dramatically decreased at first and then slightly decreased the sliding speed. The friction coefficient of the material decreased slightly with the load, but increased with sliding speed at first, and then tended to be a constant value. Wear mechanism of the coatings was oxidation wear and a large amount of counterpart material was transferred to the coatings, the RE oxide in the debris layer contributes to the improvement in wear resistance.