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Process Optimization and Property Investigation for Ultra-High-Speed Laser Cladded Fe-Cr-B Based Wear-Resistant Coating
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Zhiwei LIU1, Xiang WEI2, Li WANG2, Feng SHI1, Zhiguo CHEN1, 2
Mining and Metallurgical Engineering | 2023, 43(5) : 169 - 173
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Mining and Metallurgical Engineering | 2023, 43(5): 169-173
• MATERIALS •
Process Optimization and Property Investigation for Ultra-High-Speed Laser Cladded Fe-Cr-B Based Wear-Resistant Coating
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Zhiwei LIU1, Xiang WEI2, Li WANG2, Feng SHI1, Zhiguo CHEN1, 2
Affiliations
  • 1.School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
  • 2.School of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi 417000, Hunan, China
Published: 2023-10-01 doi: 10.3969/j.issn.0253-6099.2023.05.038
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Fe-Cr-B based wear-resistant coating was prepared on the surface of 45 steel by ultra-high-speed laser cladding. The effects of laser power, scanning speed and powder feeding speed on the aspect ratio and crack of single pass cladding layer were studied by orthogonal experimental method, and the effects of overlap rates on the surface quality of cladded layer was also studied. The optimal process parameters were determined as follows: laser power of 2 300 W, scanning speed of 250 mm/s, powder feeding speed of 24 g/min, and overlap rate of 70%. The results show that the hardness of the coating is between 754HV0.2 and 831HV0.2, which is 2.36 times to 2.60 times of the matrix hardness. Under the same conditions, the volume wear of the coating is only 3.64% of electroplated hard chromium coating.

surface modification  /  laser cladding  /  Fe-based coating  /  orthogonal experimental method  /  friction and wear  /  wear-resistant coating
Zhiwei LIU, Xiang WEI, Li WANG, Feng SHI, Zhiguo CHEN. Process Optimization and Property Investigation for Ultra-High-Speed Laser Cladded Fe-Cr-B Based Wear-Resistant Coating[J]. Mining and Metallurgical Engineering, 2023 , 43 (5) : 169 -173 . DOI: 10.3969/j.issn.0253-6099.2023.05.038
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.05.038
  • Receive Date：2023-04-25
  • Online Date：2026-03-05
  • Published：2023-10-01
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  • Received：2023-04-25
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Affiliations
    1.School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
    2.School of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi 417000, Hunan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
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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