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Enhanced plasticity in a Zr-based bulk metallic glass composite with in situ formed intermetallic phases

机译:原位形成金属间相的Zr基块状金属玻璃复合材料的可塑性增强

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摘要

An in situ formed intermetallic phase/bulk metallic glass composite with high strength and good plasticity was fabricated by casting Zr_(55.0)Cu_(29.0)Ni_(8.0)Al_(8.0) melts. In situ formed tetragonal structured (Zr,Ni,Al)_2(Cu,Ni,Al) intermetallic particles with a hardness of 9.6±0.3 GPa improve the fracture strength of the composite. Micrographs of the fractured samples reveal that the shear band spacing is smaller than the intermetallic particles, indicating that they can effectively block shear band propagation before catastrophic fracture.
机译:通过铸造Zr_(55.0)Cu_(29.0)Ni_(8.0)Al_(8.0)熔体制备了高强度,可塑性好的原位形成的金属间相/本体金属复合材料。原位形成的具有9.6±0.3 GPa硬度的四方结构化(Zr,Ni,Al)_2(Cu,Ni,Al)金属间化合物提高了复合材料的断裂强度。断裂样品的显微照片显示,剪切带间距小于金属间颗粒,表明它们可以有效阻止剪切带在灾难性断裂之前传播。

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  • 来源
    《Applied Physicsletters》 |2009年第8期|081908.1-081908.3|共3页
  • 作者单位

    Engineering Research Center of Materials Behavior and Design, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

    Engineering Research Center of Materials Behavior and Design, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China;

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA Department of Mechanical Engineering, Hong Kong Polytechnic University, Hung Horn, Kowloon, Hong Kong;

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-18 03:19:50

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