Influences of Welding Current on Joint Structure and Mechanical Property of AZ31B Magnesium Board

  • Yingchun TianEmail author
  • Ping Gao
  • Jianjun Lv
  • Mingyi Zhang
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 217)


In this thesis, the author regarded AZ31B magnesium alloy board as the welding parent metal to study metal inert gas (TIG) welding joint structure characteristics and mechanical properties. The findings showed that magnesium alloy weld joint presented the structure of the tiny isometric crystal. Weld joint owns relatively coarse crystalline grains. Also, welding metal is mainly composed of α-Mg solid solution and β-Mg17Al12 intermetallic compound. The tensile property of welding joint indicated that AZ61 welding wire can gain the high-quality weld joint. The strength reaches up to 91% of the parent metal. The fracture analysis showed that welding joint first fractured in the weld joint and the fracture shows the topographic characteristics of ductile–brittle mixed fracture.


AZ31B magnesium alloy TIG welding Wire for welding Organization Tensile strength Hardness 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Yingchun Tian
    • 1
    Email author
  • Ping Gao
    • 1
  • Jianjun Lv
    • 1
  • Mingyi Zhang
    • 1
  1. 1.Inner Mongolia Institute of Metal MaterialsBaotouChina

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