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

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1016/j.matdes.2010.06.048
AuteurRechercher : 1; Rechercher : 1
Affiliation
  1. Conseil national de recherches du Canada. Aérospatiale
FormatTexte, Article
SujetD. 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
Résumé
The 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.
Date de publication
Dans
  • Materials and Design 32, nº 1 (2011) : 1–11.
Langueanglais
Publications évaluées par des pairsOui
Numéro NPARC21271144
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Identificateur de l’enregistrementc60e072c-9ef2-4a4a-9bdf-ec90c3d00d68
Enregistrement créé2014-03-24
Enregistrement modifié2020-04-21
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