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首页> 外文期刊>Journal of Materials Research >Quantifying residual stress in Helium-implanted surfaces and its implication for blistering
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Quantifying residual stress in Helium-implanted surfaces and its implication for blistering

机译：量化氦气植入表面的残余应力及其对水泡的含义

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摘要

Helium implantation in surfaces is of interest for plasma-facing materials and other nuclear applications. Vanadium as both a representative bcc material and a material relevant for fusion applications is implanted using a Helium ion beam microscope, and the resulting swelling and nanomechanical properties are quantified. These values are put in correlation to data obtained from micro-residual stress measurements using a focused ion beam-based ring-core technique. We found that the swelling measured is similar to literature values. Further, we are able to measure the surface stress caused by the implantation and find that it approaches the yield strength of the material at blistering doses. The simple calculations performed in the present work, along with several geometrical considerations deduced from experimental results confirm the driving force for blister formation comes from bulging resulting mainly from gas pressure buildup, rather than solely stress-induced buckling.
机译：表面的氦气植入对等离子体的材料和其他核应用感兴趣。 使用氦离子束显微镜植入植物作为代表性的BCC材料和与融合应用相关的材料，并定量所得到的溶胀和纳米机械性能。 这些值与使用基于聚焦离子束的环形技术的微余应力测量获得的数据进行相关性。 我们发现测量的肿胀类似于文献值。 此外，我们能够测量由植入引起的表面应力，并发现它在起泡剂量下接近材料的屈服强度。 在本作工作中进行的简单计算以及从实验结果推导的几个几何考虑确认了泡罩形成的驱动力来自膨胀，主要来自气体压力堆积，而不是仅应力诱导的屈曲。

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  • 来源
    《Journal of Materials Research》 |2021年第11期|2349-2356|共8页
  • 作者

    P. Hosemann; M. Sebastiani; M. Z. Mughal; X. Huang; A. Scott; M. Balooch;

  • 作者单位

    Department of Nuclear Engineering University of California at Berkeley Berkeley CA 94720 USA Material Science Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA;

    Engineering Department Roma Tre University Via della Vasca Navale 79 00146 Rome Italy;

    Engineering Department Roma Tre University Via della Vasca Navale 79 00146 Rome Italy;

    Department of Nuclear Engineering University of California at Berkeley Berkeley CA 94720 USA;

    Department of Nuclear Engineering University of California at Berkeley Berkeley CA 94720 USA;

    Department of Nuclear Engineering University of California at Berkeley Berkeley CA 94720 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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