Metallurgical and Materials Transactions A

, Volume 50, Issue 1, pp 295–299 | Cite as

Achieving High-Quality Al/Steel Joint with Ultrastrong Interface

  • Yongxian HuangEmail author
  • Long Wan
  • Xiaoqing Si
  • Tifang Huang
  • Xiangchen Meng
  • Yuming Xie


An enlarged pin head with circumferential notches for friction stir lap welding was proposed to achieve Al/steel joint with ultrastrong interface. The hook defect was eliminated. The effective interfacial width of 7.5 mm was achieved. The local silicon enrichment suppressed the growth of intermetallic compounds, which was attributed to the formation of an ultrathin interfacial layer containing a Fe4Al13 layer, a single Fe2Al5 layer, a bright Fe-rich layer, and a chaotic layer. The maximum tensile shear strength reached up to 442 N/mm.



This study was supported by the National Natural Science Foundation of China (No. 51575132).


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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2018

Authors and Affiliations

  • Yongxian Huang
    • 1
  • Long Wan
    • 1
  • Xiaoqing Si
    • 1
  • Tifang Huang
    • 1
  • Xiangchen Meng
    • 1
  • Yuming Xie
    • 1
  1. 1.State Key Laboratory of Advanced Welding and JoiningHarbin Institute of TechnologyHarbinP.R. China

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