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Cr元素对Ni基无硼钎料钎焊金刚石的组织及性能影响

王朋波 石梦阳 张雷 纠永涛 程战 秦建 丁梓超 徐东

王朋波, 石梦阳, 张雷, 纠永涛, 程战, 秦建, 丁梓超, 徐东. Cr元素对Ni基无硼钎料钎焊金刚石的组织及性能影响[J]. 金刚石与磨料磨具工程, 2022, 42(4): 421-427. doi: 10.13394/j.cnki.jgszz.2022.0056
引用本文: 王朋波, 石梦阳, 张雷, 纠永涛, 程战, 秦建, 丁梓超, 徐东. Cr元素对Ni基无硼钎料钎焊金刚石的组织及性能影响[J]. 金刚石与磨料磨具工程, 2022, 42(4): 421-427. doi: 10.13394/j.cnki.jgszz.2022.0056
WANG Pengbo, SHI Mengyang, ZHANG Lei, JIU Yongtao, CHENG Zhan, QIN Jian, DING Zichao, XU Dong. Effect of Cr on microstructure and properties of brazed diamond with Ni-based boron free solder[J]. Diamond &Abrasives Engineering, 2022, 42(4): 421-427. doi: 10.13394/j.cnki.jgszz.2022.0056
Citation: WANG Pengbo, SHI Mengyang, ZHANG Lei, JIU Yongtao, CHENG Zhan, QIN Jian, DING Zichao, XU Dong. Effect of Cr on microstructure and properties of brazed diamond with Ni-based boron free solder[J]. Diamond &Abrasives Engineering, 2022, 42(4): 421-427. doi: 10.13394/j.cnki.jgszz.2022.0056

Cr元素对Ni基无硼钎料钎焊金刚石的组织及性能影响

doi: 10.13394/j.cnki.jgszz.2022.0056
基金项目: 新型钎焊材料与技术国家重点实验室开放课题(SKLABFMT-201803) ;安徽省重点研究与开发计划(2022i01020008)
详细信息
    通讯作者:

    徐东,男,1973年生,教授、博士生导师。主要研究方向:异种材料连接技术,新型钎焊材料及钎焊技术。E-mail:frank@shu.edu.cn

  • 中图分类号: TQ164; TG74; TG401

Effect of Cr on microstructure and properties of brazed diamond with Ni-based boron free solder

  • 摘要: 针对B元素易使钎焊金刚石接头出现较多硬脆相的问题,制备一种新型Ni–Cr–Si–Cu–Sn无硼活性钎料,分析Cr元素对钎料组织和钎焊金刚石试样性能的影响规律。结果表明:Cr元素具有细化钎料晶粒和调控钎料中各元素分布的作用,可以提高钎料合金的显微硬度。当Cr元素质量分数过高时,会使钎料的熔点升高,钎料的润湿性能下降。综合来说,含有质量分数为15%的Cr的无硼钎料性能最佳,钎焊金刚石试样的磨削性能较优良,接头处出现多种形状的Cr7C3相,实现了钎料对金刚石的高强度连接。

     

  • 图  1  钎料铸锭宏观形貌

    Figure  1.  Macro morphology of solder alloy ingot

    图  2  各组分钎料合金的显微组织

    Figure  2.  Microstructure of each component solder alloy

    图  3  各钎料合金的晶粒大小

    Figure  3.  Grain size of each solder alloy

    图  4  钎料合金显微组织的各元素面扫描图

    Figure  4.  Element surface scanning diagram of microstructure of solder alloy

    图  5  各钎料的XRD图谱

    Figure  5.  XRD of solder

    图  6  不同Cr元素质量分数的钎料合金的显微硬度

    Figure  6.  Microhardness of solder alloy with different Cr element mass fraction

    图  7  不同钎料合金的DSC曲线

    Figure  7.  DSC curves of different solder alloys

    图  8  不同钎焊式样的摩擦结果

    Figure  8.  Friction results of different brazing patterns

    图  9  3号钎料钎焊金刚石形貌

    Figure  9.  Morphology of diamond brazed with No. 3 solder

    图  10  钎焊接头蚀刻后的金刚石形貌

    Figure  10.  Diamond morphology of brazed joint after etching

    图  11  钎焊接头刻蚀后的金刚石形貌

    Figure  11.  Diamond morphology of brazed joint after etching

    表  1  新型无硼钎料成分表

    Table  1.   Composition of new boron free solder

    钎料编号Cr 质量
    分数
    ωCr / %
    Sn质量
    分数
    ωSn / %
    Cu质量
    分数
    ωCu / %
    Si质量
    分数
    ωSi / %
    Ni质量
    分数
    ωNi / %
    1号 55205余量
    2号105205余量
    3号155205余量
    4号205205余量
    5号255205余量
    下载: 导出CSV
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出版历程
  • 录用日期:  2022-06-23
  • 收稿日期:  2022-04-21
  • 修回日期:  2022-06-07

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