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- Title
Eficiencia mecánica en la soldadura por fricción agitación de la aleación de magnesio AZ31B.
- Authors
Arenas, Fernando Franco
- Abstract
The aim of the present work was to determine the relationship between the microstructures and the resultant mechanical properties in the Friction stir welded joints of the Mg alloys AZ31B, as a function of the main process variables, implemented from the use of a conditioned universal milling machine. Sound welds without defects, with corresponding high values of mechanical strength, were obtained for different levels of the ratio rotation speed/welding speed of the welded joints, with the maximum mechanical efficiency obtained of 93%. The microstructural characterization in the stirred zone showed fine equiaxed homogeneous grains with an average diameter of 10 µm. The failure of tension specimens occurred generally trough the advancing side, showing a surface morphology ductile-like with a low plastic deformation of less than 5%. Quality and mechanical results of FSWed joints of Mg alloy AZ31B, let us to assure the convenience of using them for structural applications taking into account their high specific mechanical strength.
- Subjects
MECHANICAL efficiency; FRICTION stir welding; MAGNESIUM alloy welding; WELDED joints; MICROSTRUCTURE; MILLING machinery; METALS; DUCTILITY
- Publication
Ingeniería y Competitividad, 2012, Vol 14, Issue 1, p23
- ISSN
0123-3033
- Publication type
Article