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首页> 外文期刊>Materials Science and Engineering >Vacuum brazing titanium using thin nickel layer deposited by PVD technique
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Vacuum brazing titanium using thin nickel layer deposited by PVD technique

机译：使用PVD技术沉积的镍薄层对铜进行真空钎焊

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摘要

In this study, the evolution of the interfacial microstructure, hardness distribution, and the joint strength of vacuum brazed commercially pure titanium were evaluated. A thin nickel layer, with different thicknesses, was deposited by PVD technique to serve as the brazing filler metal. Test joints were processed at temperatures of 910 ℃ and 960 ℃ using a soaking time of 15 and 90 min. The experimental results showed that sound joints with a good wetting quality as well as lack of pores and cracks can be achieved at a brazing temperature of 960 ℃. A Ti_2Ni intermetallic compound was formed at the interfacial area at a soaking time of 15 min and with a deposition rate of 90 AH which was detrimental to the joint mechanical properties. Meanwhile, at a soaking time of 90 min, intermetallic compound was not detected and the diffusion of nickel was completed at all deposition rates which improve the shear strength of the joints.
机译：在这项研究中，评估了真空钎焊商业纯钛的界面微观结构，硬度分布和接头强度的演变。通过PVD技术沉积具有不同厚度的薄镍层，以用作钎料。测试接头在910℃和960℃的温度下进行15分钟和90分钟的浸泡时间。实验结果表明，在960℃的钎焊温度下，可以形成良好的焊缝，并具有良好的润湿质量，且没有气孔和裂纹。在界面区域以15分钟的均热时间和90 AH的沉积速率形成Ti_2Ni金属间化合物，这对接头的机械性能有害。同时，在90分钟的浸泡时间内，未检测到金属间化合物，并且镍在所有沉积速率下均完成了扩散，从而提高了接头的剪切强度。

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  • 来源
    《Materials Science and Engineering》 |2013年第10期|180-186|共7页
  • 作者

    A. Elrefaey; L. Wojarski; J. Janczak-Rusch; W. Tillmann;

  • 作者单位

    Empa, Swiss Federa Laboratories for Materials Science and Technology, UEberlandstrasse 129, 8600 Duebendorf, Switzerland;

    Institute of Materials Engineering, Faculty of Mechanical Engineering, TU Dortmund, Germany;

    Empa, Swiss Federa Laboratories for Materials Science and Technology, UEberlandstrasse 129, 8600 Duebendorf, Switzerland;

    Institute of Materials Engineering, Faculty of Mechanical Engineering, TU Dortmund, Germany;

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

    Titanium; Brazing; Nickel layer; PVD;

    机译：钛;钎焊;镍层;聚偏二氟乙烯;

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