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Effect of Boron Content on Microstructure and Wear Resistance of Fe-B-W Coatings by Ultra-High-Speed Laser Cladding
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Jingyao XIA1, Xiang WEI1, Zhiguo CHEN2, 3, Min TANG1, Yang QIN1
Mining and Metallurgical Engineering | 2026, 46(4) : 233 - 237
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Mining and Metallurgical Engineering | 2026, 46(4): 233-237
• MATERIALS •
Effect of Boron Content on Microstructure and Wear Resistance of Fe-B-W Coatings by Ultra-High-Speed Laser Cladding
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Jingyao XIA1, Xiang WEI1, Zhiguo CHEN2, 3, Min TANG1, Yang QIN1
Affiliations
  • 1.School of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi 417000, Hunan, China
  • 2.School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan, China
  • 3.School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
doi: 10.3969/j.issn.0253-6099.2026.04.036
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High-wear-resistance Fe-B-W coatings were fabricated on 65Mn steel substrates via ultra-high-speed laser cladding by regulating boron content. The effects of boron content on the microstructure, microhardness and tribological properties of Fe-B-W coatings were systematically investigated by using scanning electron microscopy, X-ray diffraction, microhardness tester and friction and wear tester. The results reveal that the Fe-B-W coatings are mainly composed of α-Fe phase and Fe2B phase, along with a small amount of W phase, Fe3B phase and Fe23B6 phase. Iron-boron compounds increase with the rising boron content, distribute in a network structure inside the coatings and gradually coarsen. The Fe-B-W coatings can greatly elevate the microhardness and wear resistance of 65Mn steel substrate. As boron content increases, the microhardness of the coatings rises gradually, while the friction coefficient and volumetric wear rate first decrease and then increase. The coating with 3.5% boron exhibits the lowest friction coefficient, and its volumetric wear rate also drops to the lowest, only 35.8% of that of the substrate, which demonstrates that Fe-3.5B-30W coating possesses optimal comprehensive performance. It is shown that the dominant wear mechanism of Fe-B-W coatings is abrasive wear.

ultra-high-speed laser cladding  /  Fe-B alloy  /  Fe2B  /  coating  /  wear resistance
夏敬尧, 魏祥, 陈志国, 唐敏, 覃洋. 硼含量对超高速激光熔覆Fe-B-W涂层微观组织与耐磨性的影响. 矿冶工程杂志, 2026 , 46 (4) : 233 -237 . DOI: 10.3969/j.issn.0253-6099.2026.04.036
Jingyao XIA, Xiang WEI, Zhiguo CHEN, Min TANG, Yang QIN. Effect of Boron Content on Microstructure and Wear Resistance of Fe-B-W Coatings by Ultra-High-Speed Laser Cladding[J]. Mining and Metallurgical Engineering, 2026 , 46 (4) : 233 -237 . DOI: 10.3969/j.issn.0253-6099.2026.04.036
Appendix
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Year 2026 volume 46 Issue 4
134
34
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Article Info
doi: 10.3969/j.issn.0253-6099.2026.04.036
  • Receive Date：2026-01-30
  • Online Date：2026-10-08
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  • Received：2026-01-30
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Affiliations
    1.School of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi 417000, Hunan, China
    2.School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan, China
    3.School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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