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<p>To explore the friction and wear properties of pure1 iron in the presence of a magnetic field, a high permeability iron-based amorphous wear-resistant coating was developed using advanced high-velocity oxy-fuel (HVOF) technology. Comprehensive analyses, including x-ray diffraction (XRD), metallographic microscopy, microhardness testing, scanning electron microscopy (SEM), and high-speed wear testing, were conducted to assess the phase composition, porosity, microstructure, microhardness, bond strength, and wear resistance of the coating. Magnetic property evaluations were also performed. The results indicated notable characteristics, with the coating exhibiting an average porosity of only 0.39%, a high bond strength of 68&#xa0;MPa, and a microhardness of 670&#xa0;HV<sub>0.2</sub>. Additionally, the coating demonstrated a maximum permeability of 2523&#xa0;H/m and a coercivity of 121.1&#xa0;A/m, surpassing the properties of the base material and providing exceptional wear resistance. This study focuses on utilizing HVOF technology to develop a highly wear-resistant iron-based coating, enabling an in-depth investigation of its microstructure and performance.</p>

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Microstructure and Mechanical, Tribological and Magnetic Properties of Wear-Resistant and Permeable Iron-Based Amorphous HVOF Coatings

  • 期刊论文

  • 发表日期：

    2025年7月14日

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  • Chun Guo,
  • Qingcheng Lin,
  • Chi Qin,
  • Ruizhang Hu

摘要

To explore the friction and wear properties of pure1 iron in the presence of a magnetic field, a high permeability iron-based amorphous wear-resistant coating was developed using advanced high-velocity oxy-fuel (HVOF) technology. Comprehensive analyses, including x-ray diffraction (XRD), metallographic microscopy, microhardness testing, scanning electron microscopy (SEM), and high-speed wear testing, were conducted to assess the phase composition, porosity, microstructure, microhardness, bond strength, and wear resistance of the coating. Magnetic property evaluations were also performed. The results indicated notable characteristics, with the coating exhibiting an average porosity of only 0.39%, a high bond strength of 68 MPa, and a microhardness of 670 HV0.2. Additionally, the coating demonstrated a maximum permeability of 2523 H/m and a coercivity of 121.1 A/m, surpassing the properties of the base material and providing exceptional wear resistance. This study focuses on utilizing HVOF technology to develop a highly wear-resistant iron-based coating, enabling an in-depth investigation of its microstructure and performance.