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Effects of welding current on microstructure and elements diffusion of Ti3Al /TC11 alloy weld seamChinese Full Text

Kang Yan;Western Titanium Technologies Co. ,Ltd.;

Abstract: Ti3Al and TC11 alloys were joined by electron beam welding. The influence of welding current on microstructure and elements diffusion of the weld seam for Ti3Al / TC11 alloy were investigated. The results show that the microstructure coarsens and the difference of grain size decreases with welding current increasing,and the coarse β columnar grain is formed in the weld seam when the welding current increases to 25 mA. Although the welding current has a little effect on the alloying elements content in the weld,but it has a relatively significant effect on its uniformity,which is related to the microstructure morphology in the weld seam. With welding current increasing,the uniformity of alloying elements content in the weld seam become worse.
  • DOI:

    10.13251/j.issn.0254-6051.2014.03.018

  • Series:

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  • Classification Code:

    TG456.3

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