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Optimization of AlCrSiWN Coating Process Parameters and Performance Study by the Matrix Analysis Method.

Shasha Wei1, Renxin Wang1, Hu Yang1

  • 1College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen 361021, China.

Materials (Basel, Switzerland)
|July 28, 2022
PubMed
Summary
This summary is machine-generated.

Optimizing AlCrSiWN coatings via arc ion plating enhances hardness and wear resistance. A bias voltage of -80 V yields superior microscopic morphology, mechanical properties, and friction performance for cemented carbide substrates.

Keywords:
AlCrSiWN coatingarc ion platingcoating performancematrix analysis methodorthogonal experiment

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Area of Science:

  • Materials Science
  • Surface Engineering
  • Tribology

Background:

  • Advanced coatings are crucial for improving the performance and durability of materials.
  • Arc ion plating is a widely used technique for depositing thin films.
  • Understanding process parameter effects is key to optimizing coating properties.

Purpose of the Study:

  • To optimize the arc ion plating process for AlCrSiWN coatings on cemented carbide.
  • To investigate the influence of bias voltage on coating characteristics.
  • To determine the optimal process parameters for enhanced hardness, bonding, roughness, and wear resistance.

Main Methods:

  • Orthogonal experimental design for process parameter optimization.
  • Matrix analysis to evaluate the impact of bias voltage, arc current, and N2 flow rate.
  • Microscopic morphology, mechanical property, and friction performance testing.

Main Results:

  • Bias voltage had the most significant impact on coating properties, followed by arc current and N2 flow rate.
  • Optimal parameters: 160 A arc current, -80 V bias voltage, 600 sccm N2 flow rate.
  • The -80 V bias voltage resulted in improved surface morphology, higher hardness, lower roughness, better bond strength, and enhanced wear resistance.

Conclusions:

  • The bias voltage is a critical parameter for tailoring AlCrSiWN coating properties.
  • -80 V bias voltage significantly enhances the mechanical and tribological performance of the coating.
  • The optimized AlCrSiWN coating exhibits excellent wear resistance, with adhesion and oxidation wear mechanisms dominating.