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Corrosion Resistance of Al2O3-316L Coatings Based on Optimized Extreme High-Speed Laser Cladding Technology
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Feng SHI1, Xiang WEI2, Zhiguo CHEN3, Peiyang LI1, Baojun XIE1, Jingyao XIA2
Mining and Metallurgical Engineering | 2025, 45(2) : 178 - 182
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Mining and Metallurgical Engineering | 2025, 45(2): 178-182
• MATERIALS •
Corrosion Resistance of Al2O3-316L Coatings Based on Optimized Extreme High-Speed Laser Cladding Technology
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Feng SHI1, Xiang WEI2, Zhiguo CHEN3, Peiyang LI1, Baojun XIE1, Jingyao XIA2
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
  • 3.School of Intelligent Manufacturing, Hunan Open University, Changsha 410004, Hunan, China
Published: 2025-04-01 doi: 10.3969/j.issn.0253-6099.2025.02.032
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Extreme high-speed laser cladding (EHLA) technology was used to prepare Al2O3-316L coatings on Ti6Al4V rods. The effects of scanning speed, powder feeding rate on single-track coating quality, and 316L powder content on multi-track coating quality and corrosion resistance were explored. Results show that with the following optimum process parameters, including scanning speed of 250 mm/s and powder feeding rate of 8 g/min, the coating can present superior quality with the 316L powder in a mass fraction of 20%. It is shown that all Al2O3-316L coatings exhibit superior corrosion resistance compared to the substrate. As 316L content increases, the corrosion resistance of coatings increases followed by decline. With 316L powder in a mass faction of 20%, the electrochemical impedance of the coating is 2.27 times that of the substrate.

surface treatment  /  alumina coating  /  316L  /  laser cladding  /  cladding coating  /  process parameter  /  corrosion resistance
Feng SHI, Xiang WEI, Zhiguo CHEN, Peiyang LI, Baojun XIE, Jingyao XIA. Corrosion Resistance of Al2O3-316L Coatings Based on Optimized Extreme High-Speed Laser Cladding Technology[J]. Mining and Metallurgical Engineering, 2025 , 45 (2) : 178 -182 . DOI: 10.3969/j.issn.0253-6099.2025.02.032
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doi: 10.3969/j.issn.0253-6099.2025.02.032
  • Receive Date：2024-09-27
  • Online Date：2026-03-19
  • Published：2025-04-01
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  • Received：2024-09-27
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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
    3.School of Intelligent Manufacturing, Hunan Open University, Changsha 410004, 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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