Achieving high surface integrity of Fe-based laser cladding coating by optimized temperature field-assisted ultrasonic burnishing

Shen, Xuehui; Peng, Hao; Liu, Chang

doi:10.1016/j.jmapro.2022.08.047

Cited by 10 publications

(2 citation statements)

References 43 publications

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“…Currently, ceramic particle (such as TiC, SiC, etc. )-reinforced cobalt-based [18,19], nickel-based [20,21], or Fe-based [22,23] alloy coatings prepared using laser cladding are widely used. Research on strengthening nickel-based alloy coatings with high-hardness-WC ceramic particles has also gradually emerged as a research hotspot.…”

Section: Introductionmentioning

confidence: 99%

Effect of WC Content on the Wear and Corrosion Properties of Oscillating Laser-Cladding-Produced Nickel-Based Coating

Li,

Zhang,

Liu

et al. 2023

Coatings

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Pneumatic conveying pipe is an important part of the coal industry. Its working environment is harsh, and it is mainly affected by serious wear and corrosion, which affects its operating life. Studying a method of strengthening the pipe wall of pneumatic conveying pipe is of great significance. In this paper, nickel-based alloy coatings with different WC (tungsten carbide) contents were prepared using an oscillating laser-cladding process, and the micro-characterization characteristics, wear resistance and corrosion resistance of the laser-cladded layer were discussed. The main conclusions are as follows: The microstructure of the laser-cladded layer gradually grows from the plane crystals and cellular crystals at the bottom to the relatively coarse columnar crystals in the middle, and finally to a large number of equiaxed crystals in the upper part. Moreover, with an increase in WC content, more fine equiaxed crystals are formed, mainly due to the decrease in temperature gradient with the increase in distance from the fusion line. Also, with an increase in WC content, the hardness and wear resistance of the nickel-based alloy are improved. When 20% WC is added, the laser-cladded layer shows the best corrosion resistance in 3.5 wt.% NaCl solution, and its polarization resistance is 16% lower than that when 10% WC is added. This study provides a technical reference for improving the operating life of pneumatic conveying pipelines.

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Section: Introductionmentioning

confidence: 99%

Effect of WC Content on the Wear and Corrosion Properties of Oscillating Laser-Cladding-Produced Nickel-Based Coating

Li,

Zhang,

Liu

et al. 2023

Coatings

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show abstract

“…In addition, the coating material often has different thermal properties from the metal substrate, so it inevitably generates tensile stress residues inside the coating, making the molten layer susceptible to cracking. 12) Various surface treatment techniques have been tried to improve these defects produced during laser cladding preparation. Examples include laser remelting, 13) low-temperature plasma nitriding, 14,15) and plasma carbon-nitriding techniques.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Microstructure and Mechanical Properties of NiCoCrAlY Coatings After High-Current Pulsed Electron Beam Irradiation

Tian

Chen

et al. 2023

Mater. Trans.

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In this paper, the NiCoCrAlY coating prepared by laser cladding was modified by a high-current pulsed electron beam technique. Scanning electron microscopy and X-ray diffraction analysis were used to characterize the microstructure and composition of the coatings before and after irradiation, and then the changes in mechanical properties were revealed by comparing the hardness and friction properties of the two coatings. The results showed that the pulsed irradiation purified the coating surface, formed an evaporative recondensation layer and a plastic deformation layer, and produced a dense remelting layer with a thickness of 34 µm. The remelted layer led to an increase in the hardness of the irradiated coating and a decrease in the friction coefficient and wear. The pulsed irradiation effectively improved the mechanical properties of the coatings.

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On material flow behavior, strain energy, and improved surface integrity ratio in subsequent burnishing after turning

Zhang,

Ji,

et al. 2023

Int J Adv Manuf Technol

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Achieving high surface integrity of Fe-based laser cladding coating by optimized temperature field-assisted ultrasonic burnishing

Cited by 10 publications

References 43 publications

Effect of WC Content on the Wear and Corrosion Properties of Oscillating Laser-Cladding-Produced Nickel-Based Coating

Effect of WC Content on the Wear and Corrosion Properties of Oscillating Laser-Cladding-Produced Nickel-Based Coating

Evolution of Microstructure and Mechanical Properties of NiCoCrAlY Coatings After High-Current Pulsed Electron Beam Irradiation

On material flow behavior, strain energy, and improved surface integrity ratio in subsequent burnishing after turning

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