Applied Sciences (Jun 2019)

Joining of AZ31 Magnesium Alloy to 6061 Aluminum Alloy with Sn-Zn Filler Metals Containing Trace Rare Earth Elements

  • Shih-Ying Chang,
  • Jun-Yen Lee,
  • Yan-Hua Huang,
  • An-Ban Wu

DOI
https://doi.org/10.3390/app9132655
Journal volume & issue
Vol. 9, no. 13
p. 2655

Abstract

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In this study, AZ31 magnesium alloy and 6061 aluminum alloy were joined with Sn-xZn (x = 5, 10, 20 and 30 wt.%) fillers containing trace rare earth elements at 250 °C in air without the use of flux or a wetting layer. The bond shear strengths of AZ31 magnesium alloy/6061 aluminum alloy joints with Sn-5Zn-0.1RE, Sn-10Zn-0.1RE, Sn-20Zn-0.1RE, and Sn-30Zn-0.1RE fillers were determined to be 14.84, 17.08, 19.39 and 20.86 MPa, respectively. The shear strengths increased with increasing Zn content. The joint strengths of all four alloys significantly decreased with increasing aging time at 150 °C.

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