飞秒激光诱导钛合金表面形貌变化的规律

发布时间：2018-05-25 19:01

本文选题：激光技术 + 表面形貌　；参考：《中国激光》2016年09期

【摘要】：研究了飞秒激光诱导的钛合金表面微纳结构随激光能量密度和脉冲个数的变化规律,并给出了微纳结构的扫描电子显微镜图。研究结果表明,钛合金表面微纳结构的演化主要经过4个阶段,依次为无激光诱导周期表面结构阶段、经典条纹结构阶段、经典与非经典条纹结构并存阶段和微驼峰结构阶段。进一步的研究表明,非经典条纹的周期随着激光能量密度或脉冲个数的增加而增加。
[Abstract]:The changes of the surface microstructures of titanium alloys induced by femtosecond laser with the laser energy density and the number of pulses are studied, and the scanning electron microscopy (SEM) diagrams of the microstructures are given. The results show that the evolution of micro and nano structure of titanium alloy surface mainly goes through four stages, which are the laser induced periodic surface structure stage, the classical stripe structure stage, the classical and non classical stripe structure phase and the micro hump structure stage. Further studies show that the period of nonclassical fringes increases with the increase of laser energy density or the number of pulses.
【作者单位】：合肥工业大学电子科学与应用物理学院;北京航空制造工程研究所高能束流加工技术重点实验室;
【分类号】：TG146.23

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