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稀土镧钕对Ti15Cu15Ni钎料硬度及TC4接头抗剪强度的影响

王红娜, 闫焉服, 马士涛, 齐学峰, 刘树英

王红娜, 闫焉服, 马士涛, 齐学峰, 刘树英. 稀土镧钕对Ti15Cu15Ni钎料硬度及TC4接头抗剪强度的影响[J]. 焊接学报, 2016, 37(11): 99-103.
引用本文: 王红娜, 闫焉服, 马士涛, 齐学峰, 刘树英. 稀土镧钕对Ti15Cu15Ni钎料硬度及TC4接头抗剪强度的影响[J]. 焊接学报, 2016, 37(11): 99-103.
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WANG Hongna, YAN Yanfu, MA Shitao, QI Xuefeng, LIU Shuying. Effect of rare earth element (La,Nb) on hardness of Ti15Cu15Ni filler metal and shear strength of TC4 joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(11): 99-103.
Citation: WANG Hongna, YAN Yanfu, MA Shitao, QI Xuefeng, LIU Shuying. Effect of rare earth element (La,Nb) on hardness of Ti15Cu15Ni filler metal and shear strength of TC4 joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(11): 99-103.
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稀土镧钕对Ti15Cu15Ni钎料硬度及TC4接头抗剪强度的影响

  • 1.

    河南科技大学 材料科学与工程学院, 洛阳 471003

  • 2.

    洛阳磊佳机械有限公司, 洛阳 471003

基金项目: 国家自然科学基金资助项目（51175151）

Effect of rare earth element (La,Nb) on hardness of Ti15Cu15Ni filler metal and shear strength of TC4 joint

  • 1.

    College of Material Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China

  • 2.

    LuoYang LeiJia Machinery Manufacturing Co., Ltd, Luoyang 471003, China

摘要

    摘要
  • 摘要: 在Ti15Cu15Ni钎料合金基础上添加微量稀土镧钕，以应用普遍的TC4为母材，研究稀土镧钕添加量对钎料合金及钎焊接头性能的影响.结果表明，稀土相分布于α-Ti及金属间化合物的相界，阻碍位错运动，使钎料硬度增加，在稀土含量为1%时达到最大40HRC.稀土镧钕对Ti15Cu15Ni抗剪强度具有较大影响，稀土含量小于0.5%时，抗剪强度随稀土含量增加而增加；稀土含量大于0.5%时，随着稀土含量增加，钎料合金抗剪强度呈下降趋势.当稀土含量等于0.5%时，抗剪强度达到最大为244.55 MPa.
    Abstract: The effect of rare earth on the Ti15Cu15Ni brazing filler alloys and the properties of joints brazed with the widely-used TC4 was studied by adding small-amount of LaNd to Ti15Cu15Ni. The results indicate that RE phases are distributed on the boundaries between α-Ti and intermetallic phases, which improves the hardness of brazing filler alloys by hindering the movement of dislocations. When the content of RE is 1%, the hardness reaches to the maximum of 40 HRC. The RE content has large effect on the shear-strength, when the content of RE is under 0.5%. The strength increases with the increase of RE, when the content of RE is higher than 0.5%. The strength decreases with the increasing of RE. When the content of RE is exactly 0.5%, the shear-strength reaches a maximum of 244.55 MPa.
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    • 参考文献(14)
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  • 收稿日期:  2014-10-29

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