Effect of tool rotational speed and probe length on lap joint quality of a friction stir welded magnesium alloy

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DOIResolve DOI: http://doi.org/10.1016/j.matdes.2010.06.048
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TypeArticle
Journal titleMaterials and Design
ISSN0261-3069
Volume32
Issue1
Pages111; # of pages: 11
SubjectD. Welding; E. Mechanical; Friction stir; Hooking defect; Kissing bond; Lap joint; Low distortion; Maximum stress; Microstructure and mechanical properties; Nonferrous metals and alloys; Rotational speed; Tensile shear load; Tensile shear strength; Welding defects; Welding parameters; Alloys; Defects; Friction; Magnesium; Magnesium alloys; Mechanical properties; Metallurgy; Probes; Shear strength; Speed; Stainless steel; Tensile strength; Tribology; Welding; Friction stir welding
AbstractThe effects of tool rotational speed and probe length on lap joint quality of friction stir welded 2-mm AZ31B-H24 magnesium alloy were investigated in terms of welding defects, microstructure and mechanical properties. Tensile shear load initially increases with increasing tool rotational speed but decreases with further increase. However, the tensile shear load always increases with increasing probe length. The highest shear strength is obtained using a set of welding parameters resulting in a downward hooking defect at the maximum stress location of the top sheet. Sound lap joints with low distortion, lack of cavity, minor kissing bond and preferable hooking defects, and high tensile shear strength were successfully obtained, indicating the great potential of friction stir welding technique for magnesium alloys. © 2010.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace (AERO-AERO)
Peer reviewedYes
NPARC number21271144
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Record identifierc60e072c-9ef2-4a4a-9bdf-ec90c3d00d68
Record created2014-03-24
Record modified2016-05-09
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