Process Study on Prepared Al₂O₃-TiB₂ Composite Coating by Reactive Spray

Abstract:

The microstructures and properties of Al2O3-TiB2 composite coating on the surface of the aluminum alloy by reactive spraying was studied. The influences of mechanical alloying and spraying temperature on the phase constituent and microstructure of the composite were analyzed by X-ray diffractometry(XRD) and scanning electron microscopy(SEM). The results indicate that Al2O3-TiB2 composite coating is obtained by plasma spraying using milled powder of Al，TiO2，B2O and B2O3. The coating possesses high microhardness of 1300 HV0.1.

• Periodical: Advanced Materials Research (Volumes 472-475)
• Pages: 309-312
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.472-475.309
• Online since: February 2012
• Authors: Xiao Ping Zhou, Ming Li, Xin Zhou
• Keywords: Composite Coating, Mechanical Alloying, Reactive Spraying, Spraying Temperature

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