首页> 外文期刊>Materials Science and Engineering >Microstructure evolution and brazing mechanism of Ti_5Si_3/Ti_3Al composite and Ni-based superalloy joints using Ti-Zr-Cu-Ni filler alloy
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Microstructure evolution and brazing mechanism of Ti_5Si_3/Ti_3Al composite and Ni-based superalloy joints using Ti-Zr-Cu-Ni filler alloy

机译:Ti-Zr-Cu-Ni填充合金的Ti_5Si_3 / Ti_3Al复合材料和Ni基高温合金的组织演变及钎焊机理

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摘要

In this study, reliable brazing of Ti_5Si_3Al composite and Inconel 718 alloy was achieved using Ti-33Zr-16Cu-13Ni (wt%) filler alloy. The effect of brazing temperature on interfacial microstructure and mechanical properties of the joints was investigated. The representative microstructure of the joint brazed at 900 ℃ for 5 min was Ti_5Si_3/Ti_3Al substrate/Ti_3Al/Ti_5Si_3 + Ti_2Ni + α-Ti/Ti_2Ni + Fe_2Ti/Cr_7Ni_3 + TiNi_3 + Ni(Cr, Fe) solid solution/ Inconel 718 substrate. The microstructure evolution mechanism of the joints was proposed based on the experimental analysis. The optimized shear strength of 208 MPa was obtained when brazing at 900 ℃ for 5 min. Additionally, the high temperature shear strength of the joints reached 335 MPa and 365 MPa at 600 °C and 650 ℃, respectively.
机译:在这项研究中,使用Ti-33Zr-16Cu-13Ni(wt%)填充合金实现了Ti_5Si_3Al复合材料和Inconel 718合金的可靠钎焊。研究了钎焊温度对接头界面组织和力学性能的影响。在900℃钎焊5 min的接头的代表性组织为Ti_5Si_3 / Ti_3Al基体/ Ti_3Al / Ti_5Si_3 + Ti_2Ni +α-Ti/ Ti_2Ni + Fe_2Ti / Cr_7Ni_3 + TiNi_3 + Ni(Cr,Fe)固溶体/ Inconel 718基体。在实验分析的基础上,提出了接头的微观组织演化机理。在900℃钎焊5min时可获得最佳的剪切强度208 MPa。另外,在600°C和650℃时,接头的高温剪切强度分别达到335 MPa和365 MPa。

著录项

  • 来源
    《Materials Science and Engineering》 |2018年第24期|28-34|共7页
  • 作者单位

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Intermetallics; Ni-based superalloys; Brazing; Microstructure; Mechanical properties;

    机译:金属间化合物镍基高温合金;钎焊;微观结构机械性能;

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