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<p>In this study, the effects of boriding, borotitanizing, and titanizing coating treatments on adhesion, scratch, and wear resistance of the 32CrMoV12-10 barrel steel were systematically investigated. The results showed that the boriding treatment with elemental amorphous boron formed the dual phase structure including Fe<sub>2</sub>B and FeB on the surface of steel. Borotitanizing and titanizing created TiB<sub>2</sub> and TiC layers on borided and uncoated steel surfaces, respectively. Borotitanizing also gave rise to the transformation of FeB layer to Fe<sub>2</sub>B layer. The thicknesses of Fe<sub>2</sub>B, FeB, TiB<sub>2</sub>, and TiC were measured as 40.90 ± 9&#xa0;µm, 58.70 ± 4&#xa0;µm, 4.30 ± 0.9&#xa0;µm, and 13.50 ± 0.6&#xa0;µm, respectively. Their hardness was determined to be 2064 ± 72 HV, 2183 ± 112 HV, 3682 ± 170 HV, and 4354 ± 225 HV, respectively. The adhesion quality of TiC was found to be unacceptable, while the FeB and TiB<sub>2</sub> layers had an acceptable adhesion quality. Among the coatings, the borotitanizing gave rise to the highest wear resistance while titanizing had the lowest. Abrasion such as fine grinding or polishing with chipping was the characteristic wear mechanism for coated samples but adhesion and delamination were observed to be dominant on uncoated steel.</p>

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Adhesion, Scratch, and Wear Resistance of Borided, Borotitanized, and Titanized 32CrMoV12-10 Barrel Steel

  • 期刊论文

  • 发表日期：

    2026年3月7日

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  • Sadun Karabiyik,
  • Yasin Alemdag,
  • Gencaga Purcek

摘要

In this study, the effects of boriding, borotitanizing, and titanizing coating treatments on adhesion, scratch, and wear resistance of the 32CrMoV12-10 barrel steel were systematically investigated. The results showed that the boriding treatment with elemental amorphous boron formed the dual phase structure including Fe2B and FeB on the surface of steel. Borotitanizing and titanizing created TiB2 and TiC layers on borided and uncoated steel surfaces, respectively. Borotitanizing also gave rise to the transformation of FeB layer to Fe2B layer. The thicknesses of Fe2B, FeB, TiB2, and TiC were measured as 40.90 ± 9 µm, 58.70 ± 4 µm, 4.30 ± 0.9 µm, and 13.50 ± 0.6 µm, respectively. Their hardness was determined to be 2064 ± 72 HV, 2183 ± 112 HV, 3682 ± 170 HV, and 4354 ± 225 HV, respectively. The adhesion quality of TiC was found to be unacceptable, while the FeB and TiB2 layers had an acceptable adhesion quality. Among the coatings, the borotitanizing gave rise to the highest wear resistance while titanizing had the lowest. Abrasion such as fine grinding or polishing with chipping was the characteristic wear mechanism for coated samples but adhesion and delamination were observed to be dominant on uncoated steel.