Laser & Optoelectronics Progress, Volume. 58, Issue 7, 0714001(2021)

Effects of Scanning Speed on Microstructure and Performances of Laser Direct Metal Deposition Airport Oil Pipeline Network Materials

Ming Pang* and Yixuan Fu
Author Affiliations
  • Civil Aviation University of China, College of Airport, Tianjin 300300, China
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    A fiber laser with a rated power of 1 kW is used to perform a laser direct metal deposition experiment on an airport oil pipeline network material to explore the effects of laser scanning speed on microstructures, hardness, corrosion resistance, and wear resistance of the deposition layers. The experimental results of microstructure and hardness show that as the laser scanning speed increased, the deposition layer thickness and the warpage deformation angle of the substrate decreased, and the peak hardness of path 2 gradually increased. The experimental results of corrosion resistance and wear resistance show that the above performance of the deposition layers had an asynchronous response with the scanning speed. At the laser scanning speed of 10 mm/s, the deposition layer showed very high corrosion resistance, and its self-corrosion current density was 27.76% of the substrate. At the laser scanning speed of 12 mm/s, the deposition layer displayed high wear resistance, and its wear rates were 52% and 42% of the deposition layer prepared at scanning speeds of 6 mm/s and 10 mm/s, respectively.

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    Ming Pang, Yixuan Fu. Effects of Scanning Speed on Microstructure and Performances of Laser Direct Metal Deposition Airport Oil Pipeline Network Materials[J]. Laser & Optoelectronics Progress, 2021, 58(7): 0714001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jul. 12, 2020

    Accepted: Aug. 27, 2020

    Published Online: Apr. 25, 2021

    The Author Email: Pang Ming (pangming1980@126.com)

    DOI:10.3788/LOP202158.0714001

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