Microstructure and Wear Resistance of Plasma Cladding Composite Coating of Fe-Based Alloy Containing Al2O3 + TiO2
Plasma cladding Fe-based alloy coating and the composite coating containing the mixed powder of Fe-based alloy and Al2O3 + TiO2 are obtained on the surface of the Q235 substrate. Microstructure, microhardness and wear resistance of the two kinds of coatings are investigated contrastively. The results show that the interface solidification behavior of Fe-based alloy composite coating containing the powder of Al2O3 + TiO2 have been changed. Small dendrite is formed from the primary lathy, and cores for solidification are offered and the grains are refined. The cladding layer is composed of -Fe as the substrate and Cr23C6, Fe3C, Al2O3 + TiO2 as the reinforced phases. The microhardness of the cladding layer reaches 600∼655 HV0.2.
Keywords: AL2O3 AND TIO2; MICROHARDNESS; PLASMA CLADDING; WEAR RESISTANCE
Document Type: Research Article
Publication date: 01 August 2008
- Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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