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首页> 外文期刊>Journal of Crystal Growth >The subgrain structure in turbine blade roots of CMSX-4 superalloy
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The subgrain structure in turbine blade roots of CMSX-4 superalloy

机译：CMSX-4高温合金叶片根部的亚晶结构

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摘要

As-cast single-crystal turbine blade roots made of CMSX-4 were investigated. The Laue method, X-ray diffraction topography, novel X-ray diffractometer provided by EFG company and scanning electron microscopy were applied to study the subgrain structure. It was found that low angle boundaries of macro scale length were present in the roots of the blades. Additionally, linear distributions of angles describing inclination of [001]_γ, direction to the main blade axis and rotation of this direction were defined across the low angle boundaries by EFG diffractometer. With the use of this diffractometer, the lattice parameter linear distributions across the low angle boundaries were also defined. The dendrites arrangement were determined by scanning electron microscopy (SEM) macro images. The mechanism of the formation of subgrain boundaries and characteristics of the orientation interactions between dendrites inside subgrains were proposed.
机译：研究了由CMSX-4制成的铸态单晶涡轮叶片根部。采用Laue法，X射线衍射形貌，EFG公司提供的新型X射线衍射仪和扫描电镜对亚晶结构进行了研究。发现叶片根部存在宏观尺度长度的低角度边界。另外，通过EFG衍射仪在低角度边界上定义了描述[001]_γ的倾斜度，相对于主叶片轴线的方向以及该方向的旋转的角度的线性分布。使用该衍射仪，还定义了跨低角度边界的晶格参数线性分布。通过扫描电子显微镜（SEM）宏观图像确定枝晶排列。提出了亚晶界形成的机理和亚晶内部枝晶间取向相互作用的特征。

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  • 来源
    《Journal of Crystal Growth》 |2014年第1期|418-422|共5页
  • 作者

    Wlodzimierz Bogdanowicz; Robert Albrecht; Jan Sieniawski; Krzysztof Kubiak;

  • 作者单位

    Institute of Material Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland;

    Institute of Material Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland Institute of Materials Science, University of Silesia, ul. Pulku Piechoty 1A, 41-500 Chorzow, Poland;

    Department of Material Science, Rzeszow University of Technology, W. Pola 2, 35-959 Rzeszow, Poland;

    Department of Material Science, Rzeszow University of Technology, W. Pola 2, 35-959 Rzeszow, Poland;

  • 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

    A1. X-ray topography; B1. Superalloys; B3. Turbine blades;

    机译：A1。 X射线形貌;B1。高温合金;B3。涡轮叶片;

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