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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research >Hydrodynamic effects on the surface morphology evolution of aluminum alloy under intense pulsed ion beam irradiation
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Hydrodynamic effects on the surface morphology evolution of aluminum alloy under intense pulsed ion beam irradiation

机译:强脉冲离子束辐照下流体动力学对铝合金表面形态演变的影响

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摘要

As widely observed in many studies, the surface morphology of solids may change significantly after irradiation of intense pulsed ion beams (IP1B). This effect is crucial for surface treatments and may limit the utilization of IPIB as a novel method for surface processing in some cases. In present work, taking 6061 aluminum alloy for instance, the hydrodynamic behavior of the molten surface formed by IPIB irradiation was studied. By taking IPIB-induced heat transfer and level-set method flow field analysis with finite element method (FEM) it is revealed that under IPIB irradiation, the surface tension caused by the uneven-ness of curvature distribution of molten surface leads to mass transportation and a smoothening trend in the surface morphology evolution, meanwhile surface tension release is achieved. Irradiation of 6061 aluminum alloy was carried out and the trend in surface morphology evolution is consistent with the theoretical prediction.
机译:正如在许多研究中广泛观察到的那样,在强脉冲离子束(IP1B)照射后,固体的表面形态可能会发生显着变化。这种效果对于表面处理至关重要,在某些情况下可能会限制IPIB作为一种新的表面处理方法的利用。在目前的工作中,以6061铝合金为例,研究了IPIB辐照形成的熔融表面的水动力行为。通过对IPIB引起的传热和水平集方法进行有限元方法(FEM)的流场分析,发现在IPIB辐照下,由熔融表面曲率分布不均匀引起的表面张力导致了质量传递和在表面形态演变的平滑趋势,同时实现了表面张力的释放。进行了6061铝合金的辐照,表面形貌演变趋势与理论预测相符。

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  • 作者单位

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China,School of Space and Environment, Bqeihang University, Beijing 100191, PR China;

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China;

    Department of Mechanical Engineering, Tsinghua University, Beijing 100084, PR China;

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China;

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China;

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China;

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China;

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China;

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China;

    Institute of Heavy Ion Physics, Peking University, Beijing 100871, PR China;

    Department of Mechanical Engineering, Tsinghua University, Beijing 100084, PR China;

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, PR China;

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

    Intense pulsed ion beam (IPIB); Surface smoothing; Hydrodynamic effects;

    机译:强脉冲离子束(IPIB);表面平滑;水动力效应;

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