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HomeKey Engineering MaterialsKey Engineering Materials Vol. 804Preparation, Characterization and Tribological...

Preparation, Characterization and Tribological Properties of Diamond-Like Carbon Film on AZ31 Magnesium Alloy

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Abstract:

In this study, DLC films were deposited using IBED with various CH₄/H₂ ratio, gas flow rates and accelerating voltages. The composition and mechanical properties of the DLC coatings were characterized using SEM, Raman spectroscopy and nanoindentor. The tribological properties of the coating were also investigated using a frictional surface microscope with an in situ observation system and friction force measurements. The DLC films were characterized by a lower I_D/I_G, higher hardness, and improved tribological properties when deposited at a lower accelerating voltage (6 kV). At the CH₄/H₂ ratio of 1:99 and 6 sccm/6 kV, minimum I_D/I_G values of 0.62, relatively low friction coefficient of 0.12 , and a maximum hardness of 4056 HV were attained respectively.

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Nanomechanics and Nanomaterials: Advance and Application

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Key Engineering Materials (Volume 804)

Pages:

69-74

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.804.69

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Online since:

May 2019

Authors:

Bei Bei Han, Dong Ying Ju*, Susumu Sato, Hui Jun Zhao

Keywords:

DLC Film, Hardness, Magnesium Alloy, Plasma Preparation, Wear Resistance

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