Effects of Bias Voltage on Properties of (Ti, Al)N Coatings

Tao Chen; Hua Wu; Qing Hui Wang

doi:10.4028/www.scientific.net/AMM.281.426

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 281Effects of Bias Voltage on Properties of (Ti, Al)N...

Effects of Bias Voltage on Properties of (Ti, Al)N Coatings

Abstract:

PVD method is used to deposit (Ti,Al)N coatings on the surface of W6Mo5Cr4V2 steels. The value of bias voltage changes from -100V to -400V. X-ray diffraction (XRD), Scanning electron microscope(SEM) and UNMT-1 were employed to analysis the microstructure and mechanical properties of (Ti,Al)N coatings. The research results showed that the microstructure and mechanical properties of coatings became better when the value of bias voltage was -400V. The size and quantity of particles on coatings both decreased obviously. The adhesion between coatings and substrates increase to 54.6N. The hardness of (Ti,Al)N coatings rise to 39.7N.

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Periodical:

Applied Mechanics and Materials (Volume 281)

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426-429

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https://doi.org/10.4028/www.scientific.net/AMM.281.426

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Online since:

January 2013

Authors:

Tao Chen, Hua Wu, Qing Hui Wang

Keywords:

(Ti, Al)N Coatings, Adhesion, Bias Voltage, Hardness, PVD

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