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CHEN Biao, SHI Tielin, LIAO Guanglan, ZHANG Shuaimou. Friction welding of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass bar[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (11): 45-48.
Citation: CHEN Biao, SHI Tielin, LIAO Guanglan, ZHANG Shuaimou. Friction welding of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass bar[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (11): 45-48.

Friction welding of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass bar

  • A new friction welding system was developed to join the bulk metallic glass.The Zr41 Ti14 Cu12.5 Ni10 Be22.5 bulk metallic glass bars were joined by this welding system.The welded sample was tested by scanning electron microscope,X-ray diffraction,Vickers hardness and transmission electron microscope.The results show that no incomplete fusion or obvious defects are found,and the welded joint maintains the amorphous structure.The hardness is enhanced because a few nanocrystallines occur in the joint.Subsequently,the friction welding temperature field was simulated using finite element software ANSYS.The simulation results indicate that the friction time can not exceed 0.25 s and the upset forging should be carried out.The temperature on center interface exceeds the glass transition temperature of Zr41Ti14Cu12.5Ni10Be22.5,and the superplastic deformation occurs.It is concluded that the new friction welding system can be used to join the bulk metallic glass bars.The simulation results of temperature field accords well with that of the experiment,which is beneficial to optimize the welding parameters and guide the experiment.
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