• Laser & Optoelectronics Progress
  • Vol. 54, Issue 3, 31403 (2017)
Wan Yi1, Li Jianliang2, Xiong Dangsheng2, and Li Hang2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.3788/lop54.031403 Cite this Article Set citation alerts
    Wan Yi, Li Jianliang, Xiong Dangsheng, Li Hang. Effect of Number of Laser Pulses on Tribological Property of Textured-Coating[J]. Laser & Optoelectronics Progress, 2017, 54(3): 31403 Copy Citation Text show less

    Abstract

    The texturing process on 45 steel disc surface is done by using Nd∶YAG solid pulsed lasers and the textured arrays with different micro-hole depths are formed. The Ni-MoS2 composite coatings are prepared on the surfaces of textured steel discs. The test of the tribological performance of Al2O3 ceramic ball/45 steel disc is done, and the worn morphology of sample surfaces is analyzed. The results show that number of pulses has a small influence on the maximum diameters of micro-holes. As the number of pulses increases, the depths of micro-holes and the volumes of internal cavities increase significantly. Under the dry friction condition, the friction coefficient of textured-coating is less than that of untextured-coating by 0.1-0.15, and the friction coefficient is further decreased with micro-hole depths increasing. The textured coating with 40 pulses has the best antifriction property, and its wear life is three times of that of the textured coating with 20 pulses.
    Wan Yi, Li Jianliang, Xiong Dangsheng, Li Hang. Effect of Number of Laser Pulses on Tribological Property of Textured-Coating[J]. Laser & Optoelectronics Progress, 2017, 54(3): 31403
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