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Study on Properties of Metal Ceramic Composite Coatings Prepared by Arc Spraying

Qi Wei

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Abstract

A series of arc-sprayed coatings containing ceramic phase has been given a preliminary evaluation to assess the potential of this type of materials in wear and thermal shock resistant applications. Containing ceramic phase TiB2/Al2O3, Cr3C2,Al2O3/ TiO2 and Ni60 coatings on 20 steel were tested for coating porosity、adherence、wear resistance and thermal shock fatigue resistance, and XRD experiments were utilized to analyze coatings phase composition. The results show that the containing TiB2/Al2O3 and Cr3C2 coatings exhibit favorable porosity、adherence、wear resistance and a good resistance to thermal shock failure, in general, superior to those of Al2O3/ TiO2 and Ni60 coatings.

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What this paper is about

A series of arc-sprayed coatings containing ceramic phase has been given a preliminary evaluation to assess the potential of this type of materials in wear and thermal shock resistant applications. Containing ceramic phase TiB2/Al2O3, Cr3C2,Al2O3/ TiO2 and Ni60 coatings on 20 steel were tested for coating porosity、adherence、wear resistance and thermal shock fatigue resistance, and XRD experiments were utilized to analyze coatings phase composition. The results show that the containing TiB2/Al2O3 and Cr3C2 coatings exhibit favorable porosity、adherence、wear resistance and a good resistance to thermal shock failure, in general, superior to those of Al2O3/ TiO2 and Ni60 coatings.

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Available abstract

A series of arc-sprayed coatings containing ceramic phase has been given a preliminary evaluation to assess the potential of this type of materials in wear and thermal shock resistant applications. Containing ceramic phase TiB2/Al2O3, Cr3C2,Al2O3/ TiO2 and Ni60 coatings on 20 steel were tested for coating porosity、adherence、wear resistance and thermal shock fatigue resistance, and XRD experiments were utilized to analyze coatings phase composition. The results show that the containing TiB2/Al2O3 and Cr3C2 coatings exhibit favorable porosity、adherence、wear resistance and a good resistance to thermal shock failure, in general, superior to those of Al2O3/ TiO2 and Ni60 coatings.

Key concepts: Thermal shock, Materials science, Porosity, Ceramic, Coating, Composite material, Composite number, Phase (matter)

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