Fracture strengths of Mg alloy AZ31B-H24 friction stir lap welds

Chen, Zhan W., Yazdanian, Shamzin and Littlefair, Guy 2011, Fracture strengths of Mg alloy AZ31B-H24 friction stir lap welds, Advanced materials research, vol. 275, pp. 73-76.

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Title Fracture strengths of Mg alloy AZ31B-H24 friction stir lap welds
Author(s) Chen, Zhan W.
Yazdanian, Shamzin
Littlefair, Guy
Journal name Advanced materials research
Volume number 275
Start page 73
End page 76
Total pages 4
Publisher Trans Tech Publications
Place of publication Stafa-Zurich, Switzerland
Publication date 2011
ISSN 1022-6680
Keyword(s) hooking
material flow
FS softening
stress distribution
Summary 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.
Language eng
Field of Research 091006 Manufacturing Processes and Technologies (excl Textiles)
Socio Economic Objective 861299 Fabricated Metal Products not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2011, Trans Tech Publications
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Created: Mon, 05 Dec 2011, 12:45:13 EST

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