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Ablation mechanism study on metallic materials with a 10 ps laser under high fluence

机译:高通量10 ps激光对金属材料的烧蚀机理研究

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摘要

Single shot ablation of metallic materials of aluminium, titanium alloy (Ti6Al4V) and gold has been studied with 10 picoseconds (ps) laser pulses experimentally and theoretically. The ablation rate variation at high fluence was explained by a simplified predictive model based on critical-point phase separation (CPPS) theory. A comparison between experimental and numerical results inferred that CPPS may well be the dominant ablation mechanism for high fluence laser ablation at 10 ps laser duration.
机译:铝,钛合金(Ti6Al4V)和金的金属材料的单次烧蚀已通过实验和理论上以10皮秒(ps)的激光脉冲进行了研究。通过基于临界点相分离(CPPS)理论的简化预测模型解释了高通量下的消融速率变化。实验结果与数值结果的比较表明,CPPS可能是10 ps激光持续时间下高通量激光烧蚀的主要烧蚀机理。

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  • 来源
    《Applied Surface Science》 |2009年第18期|8171-8175|共5页
  • 作者单位

    Laser Croup, Department of Engineering, University of Liverpool, Brodie Building, Liverpool L69 3GQ, UK Institute of Thermal Science and Technology, Shandong University, Shandong 250061, China;

    Laser Croup, Department of Engineering, University of Liverpool, Brodie Building, Liverpool L69 3GQ, UK;

    Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, 1L 60616-3793, USA;

    Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, 1L 60616-3793, USA;

    Laser Croup, Department of Engineering, University of Liverpool, Brodie Building, Liverpool L69 3GQ, UK;

    Laser Croup, Department of Engineering, University of Liverpool, Brodie Building, Liverpool L69 3GQ, UK;

    Laser Croup, Department of Engineering, University of Liverpool, Brodie Building, Liverpool L69 3GQ, UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    picosecond laser processing; metals and alloys; modeling of laser ablation;

    机译:皮秒激光加工;金属和合金;激光烧蚀建模;

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