| 杨是红， 于凯昌， 史海川， 张庚瑀， 罗杨妮妮， 姚良高.纳秒激光制备TC4钛合金表面仿生结构耐磨性研究[J].轻工机械,2025,43(3):69-74 |
| 纳秒激光制备TC4钛合金表面仿生结构耐磨性研究 |
| Nanosecond Laser Prepared Wear Resistance Biomimetic Structures on TC4 Titanium Alloy Surface |
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| DOI：10.3969/j.issn.1005 2895.2025.03.010 |
| 中文关键词: 纳秒脉冲激光 微纳加工 类仿生结构 TC4钛合金 耐磨性 |
| 英文关键词:nanosecond pulsed laser micro and nano fabrication bionic like structure TC4 titanium alloy wear resistance |
| 基金项目:上海市自然科学基金（24ZR1427100）；上海工程技术大学大学生创新活动计划资助项目(CX2405015)。 |
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| 中文摘要: |
| 为提升TC4钛合金在极端工作条件下的耐磨性，课题组采用波长为1 064 nm的纳秒脉冲激光器在TC4钛合金表面进行了微纳加工，结合仿生学原理设计了类仿生蜂窝结构与蝴蝶振翅状结构2种仿生结构，并采用不同的激光扫描策略进行制备。利用扫描电镜、共聚焦显微镜及摩擦磨损试验机对类仿生结构表面形貌、耐磨性及磨损后表面形貌进行观察与分析。结果表明：类仿生蜂窝结构与蝴蝶振翅状结构表面磨损后的曲线变动较小，且曲线更加均匀，其表面线性粗糙度与抛光态相比分别缩小了2.815倍和2.075倍；类仿生结构TC4钛合金表面的耐磨性显著提升。 |
| 英文摘要: |
| In order to improve the wear resistance of TC4 titanium alloy under extreme working conditions, the research group used a nanosecond pulsed laser with a wavelength of 1 064 nm to perform micro nano machining on the surface of TC4 titanium alloy. Two types of bionic structures like honeycomb like structure and butterfly vibrating wing like structure were designed by combining with bionic principles. The micro structured surfaces were prepared using different laser scanning strategies. Scanning electron microscope, confocal microscope and friction and wear tester were used to observe and analyze the surface morphology, wear resistance and post wear surface morphology of the bionic like structures. The results show that the curve changes of the bionic honeycomb like structure and butterfly vibrating wing like structure after surface wear are smaller and the curve is more uniform, and their surface linear roughness values are respectively reduced by 2.815 times and 2.075 times compared to the polished state. The wear resistance of TC4 titanium alloy with the biomimetic structure is significantly improved. |
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