Journal of Northeastern University(Natural Science) ›› 2022, Vol. 43 ›› Issue (11): 1575-1582.DOI: 10.12068/j.issn.1005-3026.2022.11.008

• Materials & Metallurgy • Previous Articles     Next Articles

Laser Surface Micro-texturing of Zr-based Bulk Metallic Glass and Investigation of Tribological and Wear Performance

WANG Qing-hua1,2, CHENG Yang-yang3, WANG Hui-xin4   

  1. 1. School of Mechanical Engineering, Southeast University, Nanjing 211189, China; 2. Jiangsu Key Laboratory of Micro-nano Biomedical and Instrument Design and Manufacture, Nanjing 211189, China; 3. Foshan Nanhai Guangdong Technology University CNC Equipment Cooperation Innovation Institute, Foshan 528000, China; 4. Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
  • Published:2022-12-06
  • Contact: WANG Hui-xin
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Abstract: A nanosecond laser-based surface texturing technique,which combined laser surface texturing and low-temperature heat treatment, was developed to functionalize the metallic glass surface. Firstly, laser surface texturing within a specific processing window was utilized to create periodic surface structures on the Zr-based metallic glass, and subsequently heat treatment was employed to control the surface energy/chemistry of the laser textured metallic glass. The experimental results indicated that the laser textured and heat-treated metallic glass surface exhibits changes for both surface structure and surface chemistry, and realizes the wettability transition from superhydrophilicity to superhydrophobicity. In the meantime, the friction test results indicated that the laser textured superhydrophobic surface effectively improves the anti-friction performance with the help of lubrication medium.

Key words: laser processing; metallic glass; superwetting surface; micro/nanostructure; tribological and wear performance

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