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<p>Wear and corrosion are the main causes of structural failure of mechanical parts, using thermal spraying to fabricate raw materials into coating, which is a common method of protection of mechanical parts. In this work, FeCrCoMoCB amorphous coating was fabricated on the 45# steel substrate using supersonic plasma spraying (SPS). The microstructure, phase composition, mechanical, corrosion, and wear properties of FeCrCoMoCB amorphous coating were systematically investigated. The results show that FeCrCoMoCB amorphous coating had a relatively flat surface, low porosity with a dense structure, high hardness, and had an amorphous rate of more than 90%. The coating displays a passive region of about 500 mV, corrosion potential of − 1.01 V, and current density of 1.89 × 10<sup>-5</sup> A/cm<sup>2</sup>. The wear mechanism of FeCrCoMoCB amorphous coating is dominated by oxidation wear, and with the increase of load, the abrasive wear transforms into delamination wear.</p>

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Study on Properties of FeCrCoMoCB Amorphous Coating Fabricated by Supersonic Plasma Spraying

  • 期刊论文

  • 发表日期：

    2025年9月5日

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  • Yuncai Zhao,
  • Mingchao Hu,
  • Weiling Guo,
  • Yanfei Huang,
  • Zeling Hu,
  • Longlong Zhou,
  • Zhiguo Xing,
  • Haidou Wang

摘要

Wear and corrosion are the main causes of structural failure of mechanical parts, using thermal spraying to fabricate raw materials into coating, which is a common method of protection of mechanical parts. In this work, FeCrCoMoCB amorphous coating was fabricated on the 45# steel substrate using supersonic plasma spraying (SPS). The microstructure, phase composition, mechanical, corrosion, and wear properties of FeCrCoMoCB amorphous coating were systematically investigated. The results show that FeCrCoMoCB amorphous coating had a relatively flat surface, low porosity with a dense structure, high hardness, and had an amorphous rate of more than 90%. The coating displays a passive region of about 500 mV, corrosion potential of − 1.01 V, and current density of 1.89 × 10-5 A/cm2. The wear mechanism of FeCrCoMoCB amorphous coating is dominated by oxidation wear, and with the increase of load, the abrasive wear transforms into delamination wear.