| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Effects of Bias Voltage on Microstructure and Mechanical Property of AlCrSiN Coatings |
| TANG Ming1,2, DAI Mingjiang2, WEI Chunbei2, QIU Wanqi1, LIN Songsheng2, HOU Huijun2, LI Hong2
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1 School of Material Science and Engineering, South China University of Technology, Guangzhou 510640;
2 National Engineering Laboratory for Modern Materials Surface Engineering Technology, The Key Laboratory of Guangdong for Modern Surface Engineering Technology, Guangdong Institute of New Materials, Guangzhou 510651 |
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Abstract AlCrSiN coatings have attracted extensive attention due to high hardness,excellent wear and oxidation resistance.In order to improve properties of the AlCrSiN coatings, the effects of bias voltage on the structure and properties of the AlCrSiN coa-tings deposited by multi-arc plating were investigated. The surface and cross-section morphologies, phase composition and mechanical properties of the AlCrSiN coatings were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), microindentor,scratch tester, ball-on-disc wear tester and 3D profiler. The results show that the crystallizes of AlCrSiN coatings are B1-NaCl type with glassy and featureless cross morphology.Increasing the value of bias voltage improves the properties AlCrSiN coatings due to grain refinement,less droplets and denser structure.With increasing the bias voltage to 150 V, the AlCrSiN coating presented higher hardness,adhesion strength as well as better wear resistance.
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Published: 18 October 2018
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2018, Vol. 32 
