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<p>The coatings with high hardness, good machinability and geometric accuracy show great potential applications in steel industry. In this work, age hardening steel (Fe-(Co,Ni)-(W,Mo))-based coatings strengthened by TiC were fabricated on H13 steels by argon arc cladding using prefabricated blocks. The (Fe-Co-Mo)-TiC coatings show good bonding properties and low hardness after cladding. After direct aging treatment, with the decomposition of supersaturated solid solution and the precipitation of intermetallic compounds (μ-phase), the hardness rapidly increased to more than 827 HV<sub>0.5</sub>. The hardness and oxidation resistance of FeCoMo-TiC layers can be further enhanced by the introduction of W and the corrosion resistance of the layers can be modified by adding Ni. This study enriches the knowledge about the application of age hardening steels in the field of coatings.</p>

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Microstructure and Properties of Age Hardening Steel-Based Coatings Strengthened By TiC Using Argon Arc Cladding

  • 期刊论文

  • 发表日期：

    2025年8月5日

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  • Qiankun Zhang,
  • Guowei Zhong,
  • Minghan Li,
  • Jiaoyan Liu,
  • Yuxin He,
  • Zhi Meng,
  • Yifeng Xiao,
  • Liang Wu,
  • Zhihui Qiu,
  • Yuehui He,
  • Wenke Zheng,
  • Xiangwen Li

摘要

The coatings with high hardness, good machinability and geometric accuracy show great potential applications in steel industry. In this work, age hardening steel (Fe-(Co,Ni)-(W,Mo))-based coatings strengthened by TiC were fabricated on H13 steels by argon arc cladding using prefabricated blocks. The (Fe-Co-Mo)-TiC coatings show good bonding properties and low hardness after cladding. After direct aging treatment, with the decomposition of supersaturated solid solution and the precipitation of intermetallic compounds (μ-phase), the hardness rapidly increased to more than 827 HV0.5. The hardness and oxidation resistance of FeCoMo-TiC layers can be further enhanced by the introduction of W and the corrosion resistance of the layers can be modified by adding Ni. This study enriches the knowledge about the application of age hardening steels in the field of coatings.