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Adjusting compressive properties of open-cell Mg-Gd-Zn foams by variation of Gd content

机译：通过GD含量的变异调节开孔Mg-Gd-Zn泡沫的压缩性能

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摘要

Open-cell Mg-χGd-2Zn (χ = 4, 6 and 8 wt.%) foams were fabricated. The phase compositions, microstructures and element distributions of the foams with different amounts of added Gd were studied by X-ray diffraction, optical microscopy, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The compressive properties of the foams were evaluated by compressive testing at the temperatures ranging from room temperature (RT) to 300 °C. The experimental results show that an increase in the Gd content refines the microstructures of the foams and promotes the formation of long periodic stacking ordered phase. An increased temperature results in the reduction in the compressive strength and the energy absorption capacity of the foams. Additionally, the compressive strength and energy absorption capacity at each testing temperature increase with increasing Gd content. The mechanisms underlying these effects are discussed based on the relationship between the compressive properties and the Gd content of the foams.
机译：制造开放式电池Mg-χGD-2Zn（χ= 4,6和8重量％）泡沫。通过X射线衍射，光学显微镜，扫描电子显微镜，透射电子显微镜和能量分散X射线光谱研究具有不同量添加的GD的泡沫的相组合物，微观结构和元素分布。通过在从室温（RT）至300℃的温度范围内的温度下压缩测试来评估泡沫的压缩性能。实验结果表明，GD含量的增加会改善泡沫的微观结构，并促进长期堆叠有序相的形成。增加的温度导致抗压强度的降低和泡沫的能量吸收能力。另外，每次测试温度下的抗压强度和能量吸收能力随着GD含量的增加而增加。基于泡沫的压缩性质与GD含量之间的关系讨论了这些效果的基础。

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  • 来源
    《Materials Science and Engineering》 |2021年第13期|141562.1-141562.11|共11页
  • 作者

    Jiaan Liu; Shengjun Liu; Shouquan Shi; Zhiqiang Dong; Da Song; Xianyong Zhu; Zhiwu Han;

  • 作者单位

    College of Materials Science and Engineering Key Laboratory of Automobile Materials (Ministry of Education) Jilin University Changchun 130022 PR China;

    College of Materials Science and Engineering Key Laboratory of Automobile Materials (Ministry of Education) Jilin University Changchun 130022 PR China;

    College of Materials Science and Engineering Key Laboratory of Automobile Materials (Ministry of Education) Jilin University Changchun 130022 PR China;

    College of Materials Science and Engineering Key Laboratory of Automobile Materials (Ministry of Education) Jilin University Changchun 130022 PR China;

    College of Materials Science and Engineering Key Laboratory of Automobile Materials (Ministry of Education) Jilin University Changchun 130022 PR China;

    College of Materials Science and Engineering Key Laboratory of Automobile Materials (Ministry of Education) Jilin University Changchun 130022 PR China;

    Key Laboratory of Bionic Engineering (Ministry of Education) College of Biological and Agricultural Engineering Jilin University Changchun 130022 PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Foams; Mg-Gd-Zn; Compressive properties; Gd element; Elevated temperatures;

    机译：泡沫;mg-gd-zn;压缩性质;GD元素;温度升高;

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