Chinese Optics Letters, Volume. 16, Issue 6, 061401(2018)

Investigation of latest generation pulsed fiber laser in dissimilar joining of Al and Mg alloys

Qiong Gao1, Sonia Meco2, Kehong Wang1、*, Qi Zhou1, Shun Guo1, and Supriyo Ganguly2
Author Affiliations
  • 1School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • 2Welding Engineering and Laser Processing Centre, Cranfield University, Bedford MK43 0AL, United Kingdom
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    Figures & Tables(7)
    (a) Schematic representation of the experimental setup; (b) an illustration of the line scanning distance and beam overlap; (c) an illustration of the tensile test sample.
    (a) SEM picture of the cross section of the weld seam; (b) an EDS mapping picture of the weld seam; (c) a micrograph with a higher magnification of the zone indicated in (b).
    (a) Microstructure of the weld seam; (b) magnified morphology of the weld seam; (c) the line scanning result.
    Mg and Al binary phase diagram.
    (a) Tensile shear strength of Mg–Al joints and substrates; (b) Mg–Al specimen after the tensile shear test; (c) an SEM image of the fractured surface.
    • Table 1. Chemical Compositions (%, Mass Fraction) of AZ31B and 1050 Alloys

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      Table 1. Chemical Compositions (%, Mass Fraction) of AZ31B and 1050 Alloys

      MaterialAlZnMnSiFeCuCaCrMgOther
      AZ31B2.5-3.50.6-1.40.20.10.0050.050.04Bal0.3
      1050Bal0.0500.050.250.40.050.050.15
    • Table 2. Composition (%, Atomic Fraction) of the Phases Indicated in Figs. 2(c) and 3(b)

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      Table 2. Composition (%, Atomic Fraction) of the Phases Indicated in Figs. 2(c) and 3(b)

      PointMgAlPossible Phases
      13763α-Al solid solution and Al3Mg2
      25248Mg17Al12 and Al3Mg2
      38020β-Mg solid solution and Mg17Al12
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    Qiong Gao, Sonia Meco, Kehong Wang, Qi Zhou, Shun Guo, Supriyo Ganguly. Investigation of latest generation pulsed fiber laser in dissimilar joining of Al and Mg alloys[J]. Chinese Optics Letters, 2018, 16(6): 061401

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jan. 16, 2018

    Accepted: Apr. 3, 2018

    Published Online: Jul. 2, 2018

    The Author Email: Kehong Wang (wkh1602@163.com)

    DOI:10.3788/COL201816.061401

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