东北大学学报(自然科学版) ›› 2022, Vol. 43 ›› Issue (11): 1575-1582.DOI: 10.12068/j.issn.1005-3026.2022.11.008

• 材料与冶金 • 上一篇    下一篇

锆基非晶合金激光微织构处理及摩擦磨损性能

王青华1,2, 程杨洋3, 王慧鑫4   

  1. (1. 东南大学 机械工程学院, 江苏 南京211189; 2. 江苏省微纳生物医疗与器械设计与制造重点实验室, 江苏 南京211189; 3. 佛山市南海区广工大数控装备协同创新研究院, 广东 佛山528000; 4. 江苏省农业科学院 农业设施装备研究所, 江苏 南京210014)
  • 发布日期:2022-12-06
  • 通讯作者: 王青华
  • 作者简介:王青华(1990-),男,黑龙江齐齐哈尔人,东南大学讲师.
  • 基金资助:
    广东省基础与应用基础研究基金资助项目(2019A1515110501); 国家自然科学基金资助项目(52105175); 江苏省自然科学基金资助项目(BK20210235); 东南大学新进教师人才引进启动经费资助项目(1102007140).

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
  • About author:-
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摘要: 研发了一种基于纳秒激光表面微织构的功能化表面制备工艺.此工艺将激光表面加工与低温热处理相结合,先使用一定工艺窗口下的激光加工过程实现非晶合金表面微观形貌的织构化,再使用低温热处理过程调控激光织构非晶合金的表面能/表面化学.研究结果表明:激光加工与低温热处理共同作用下制备的非晶合金表面展现出了表面微纳结构与表面化学的改变,从而实现了超亲水向超疏水特性的转变.同时,微摩擦实验结果表明激光织构化超疏水表面可以在润滑介质的帮助下有效提升其抗摩擦磨损性能.

关键词: 激光加工;非晶合金;超润湿表面;微纳结构;摩擦磨损性能

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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