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Optimization of Surface Quality of CrAlN Coatings Fabricated Using Cathode Multi-Arc Ion Plating

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  • 1.Institute of Multi-dimensional Additive Manufacturing,Faculty of Mechanical Engineering and Mechanics,Ningbo University,Ningbo 315211,China; 2.Yangming College,Ningbo University,Ningbo 315211,China; 3.Ningbo Steel Co.,Ltd.,Ningbo 315807,China; 4.Ningbo Yada Metal Surface Treatment Co.,Ltd.,Ningbo 315706,China

Received date: 2022-09-05

  Revised date: 2022-10-15

  Accepted date: 2022-11-04

  Online published: 2023-03-15

Abstract

To solve the wear problem of stamping dies in high-speed machining,cathodic multi-arc ion plating is often used to improve surface properties,and the surface quality of cathode multi-arc ion plated coating is one of main factors affecting the life of stamping dies.In this paper,the effects of the DC bias voltage,flow rate of nitrogen and arc current on the surface quality of CrAlN coating were studied by the orthogonal experiments.The significance of the effects of DC bias voltage,flow rate of nitrogen and arc current on the surface quality of the CrAlN coating was analyzed by the extreme-range method and variance method.Results showed that the surface quality of the CrAlN coating was affected most significantly by the flow rate of nitrogen,and the DC bias voltage also influenced the number of large particles on the surface of the CrAlN coating.When the DC bias voltage was 160 V,the nitrogen flow rate was 1 600 mL/min,and the arc source current was 120 A,the as-prepared coating possessed the minimum number of large particles on the surface (42.5 per 10,000 μm2) and the optimal surface quality.

Cite this article

LIAN Xin-yu, WANG Xin, NIE Gao-sheng, HU Peng, SUO Xin-kun . Optimization of Surface Quality of CrAlN Coatings Fabricated Using Cathode Multi-Arc Ion Plating[J]. Materials Protection, 2023 , 56(3) : 57 -64 . DOI: 10.16577/j.issn.1001-1560.2023.0060

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