Abstract
A Fe-based composite coating reinforced by multiple TiB2–TiC–Al2O3 ceramic particles was developed by gas tungsten arc welding (GTAW) melting process. Mixture of aluminum (Al), boron carbide (B4C), and titanium dioxide (TiO2) powders was used as precursors, and as a consequence TiB2–TiC–Al2O3 multiple ceramic particles were in situ synthesized during GTAW melting process. Microstructural investigations showed that TiB2 particles exhibit a blocky morphology, TiC particles are of flower-like shape, and the Al2O3 particles exist as small black dots and located in the core of reinforced particles. The hardness and wear resistance of the coatings increased drastically in comparison with that of the substrate.
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Wang, X.H., Zhang, M. & Du, B.S. Fabrication In Situ TiB2–TiC–Al2O3 Multiple Ceramic Particles Reinforced Fe-Based Composite Coatings by Gas Tungsten Arc Welding. Tribol Lett 41, 171–176 (2011). https://doi.org/10.1007/s11249-010-9701-6
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DOI: https://doi.org/10.1007/s11249-010-9701-6