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Brazing of carbon fiber reinforced SiC composite and TC4 using Ag-Cu-Ti active brazing alloy

机译：用Ag-Cu-Ti活性钎料钎焊碳纤维增强SiC复合材料和TC4

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摘要

Carbon fiber reinforced SiC (C_f/SiC) was successfully joined to TC4 with Ag-Cu-Ti alloy powder by brazing. Microstructures of the brazed joints were investigated by scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD). The mechanical properties of the brazed joints were measured by mechanical testing machine. The results show that the brazed joint mainly consist of TiC, Ti_3SiC_2, Ti_5Si_3, Ag, TiCu, Ti_3Cu_4 and Ti_2Cu reaction products. TiC + Ti_3SiC_2/Ti_5Si_3 + Ti_2Cu reaction layers are formed near C_f/SiC composite side while Ti_3Cu_4/TiCu/Ti_2Cu/Ti_2Cu + Ti reaction layers are formed near TC4 side. The thickness of reaction layers of the brazed joint increases with the brazing temperature or holding time increasing. The maximum shear strengths of the brazed joints at room temperature and 500℃ with brazing temperature 900℃ and holding time 5 min are 102 and 51 MPa, respectively.
机译：碳纤维增强的SiC（C_f / SiC）通过Ag-Cu-Ti合金粉末通过钎焊成功地与TC4连接。通过扫描电子显微镜（SEM），能谱仪（EDS）和X射线衍射仪（XRD）研究了钎焊接头的微观结构。钎焊接头的机械性能是通过机械测试仪测量的。结果表明，钎焊接头主要由TiC，Ti_3SiC_2，Ti_5Si_3，Ag，TiCu，Ti_3Cu_4和Ti_2Cu反应产物组成。在C_f / SiC复合材料侧附近形成TiC + Ti_3SiC_2 / Ti_5Si_3 + Ti_2Cu反应层，而在TC4侧附近形成Ti_3Cu_4 / TiCu / Ti_2Cu / Ti_2Cu + Ti反应层。钎焊接头的反应层的厚度随着钎焊温度或保温时间的增加而增加。室温和500℃，钎焊温度900℃，保温时间5 min时，钎焊接头的最大剪切强度分别为102 MPa和51 MPa。

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  • 来源
    《Materials Science and Engineering》 |2010年第5期|1096-1101|共6页
  • 作者

    Jin Hui Xiong; Ji Hua Huang; Hua Zhang; Xing Ke Zhao;

  • 作者单位

    School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China;

    School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China;

    School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China;

    School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    carbon fiber reinforced SiC; TC4; brazing; Ag-Cu-Ti;

    机译：碳纤维增强SiC;TC4;钎焊银铜钛;

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