Identification of shear bands in wrought magnesium alloy friction stir welds and laser beam welds

Authors: Commin, L.¹; Rotinat, R.¹; Pierron, F.¹; Masse, J.-E.²; Barrallier, L.²

Source: Materials Science and Technology, Volume 25, Number 10, October 2009 , pp. 1215-1221(7)

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Abstract:

The microstructural study of hot rolled magnesium friction stir and laser beam welds revealed the presence of shear band features starting from the weld edge and propagating in the base metal. These shear bands present a highly twinned microstructure and strain localisation occurs preferentially in this region. This influences the resulting mechanical properties of wrought magnesium alloy friction stir and laser beam welds.

Keywords: LASER BEAM WELDING; SHEAR BAND; MAGNESIUM ALLOYS; SPECKLE INTERFEROMETRY; FRICTION STIR WELDING

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/174328409X421997

Affiliations: 1: LMPF, Arts et Metiers ParisTech, Rue Saint Dominique, 51000 Chalons en Champagne, France 2: MecaSurf, Arts et Metiers ParisTech, 2 cours des Arts et Metiers, 13617 Aix en Provence, France

Publication date: 2009-10-01

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