Paper Title:
Fracture Strengths of Mg Alloy AZ31B-H24 Friction Stir Lap Welds
  Abstract

The effects of selected friction stir lap welding parameters on fracture strength of Mg alloy AZ31B-H24 welds have been studied. Rotation speed has been found to affect significantly the flow related hook size formation. Furthermore, fracture strength decreased almost linearly with hook size. A small amount of softening was detected in fracture location that was outside the nugget zone and thus this softening may only adversely affect the fracture strength slightly. Finally, simulation results are presented to show the uneven stress distribution in a lap geometry which together with the relative brittleness of the stir material must be the cause to have significantly reduced the fracture strength.

  Info
Periodical
Edited by
George Ferguson, Ashvin Thambyah, Michael A Hodgson and Kelly Wade
Pages
73-76
DOI
10.4028/www.scientific.net/AMR.275.73
Citation
Z. W. Chen, S. Yazdanian, G. Littlefair, "Fracture Strengths of Mg Alloy AZ31B-H24 Friction Stir Lap Welds", Advanced Materials Research, Vol. 275, pp. 73-76, 2011
Online since
July 2011
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$32.00
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