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Influence of adhesive and Ni on the interface between Mg and Fe in the laser-TIG-adhesive hybrid welding joint

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Abstract

The lap joint characteristics of laser-TIG-adhesive hybrid welding of AZ61 magnesium alloy to Q235 steel are examined. The microstructures and elemental distribution of the Mg-steel dissimilar laser-arc-adhesive hybrid welding joint are investigated. A certain concentration of Mg element is found in the Ni-Fe solid solution. The metallurgical combination is attributed to the formation of a 3 μm to 5 μm thick Mg-Ni-Fe diffuse transition layer caused by adhesive addition. A metallurgical combination mode is revealed at the Mg-Ni-Fe interface in the Mg-steel laser-TIG-adhesive welding joint, which demonstrate the combined effect of the polymer and metals. The mechanical property of linear load is 3.50 kN/cm with the adhesive cured.

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Authors and Affiliations

  1. School of Material Science and Engineering, Dalian University of Technology, Key Laboratory of Liaoning Advanced Welding and Joining Technology, Dalian, Liaoning, China

    Hongyang Wang & Gang Song

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  1. Hongyang Wang
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  2. Gang Song
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Correspondence to Hongyang Wang.

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Wang, H., Song, G. Influence of adhesive and Ni on the interface between Mg and Fe in the laser-TIG-adhesive hybrid welding joint. Int. J. Precis. Eng. Manuf. 17, 823–827 (2016). https://doi.org/10.1007/s12541-016-0101-1

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  • DOI: https://doi.org/10.1007/s12541-016-0101-1

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