• Microstructure and fracture behaviour of Ti3Al/TC4 dissimilar materials joints welded by electron beam

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    • Keywords


      Microstructure; dissimilar materials joint; electron beam welding; fracture behaviour.

    • Abstract


      Electron beam was used to join TC4 alloy to Ti3Al-based alloy. The composition of the weld was analysed by XRD and TEM and the results showed that the weld mainly composed of 𝛼' martensites. The change of heat input had little influence on the composition of the weld but can make the grain size increasing. The fracture path of the joints was mainly decided by the microstructure of the weld and started from coarse grain zone to HAZ and base metal of Ti3Al alloy.

    • Author Affiliations


      H T Zhang1 H Y Zhao1 W X He1

      1. School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, Shandong Province, People’s Republic of China
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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