Fatigue of friction stir and GTAW welded AZ31B magnesium alloy

• Published in: Volume 6: Materials Technology; Polar and Arctic Sciences and Technology; Petroleum Technology Symposium
• Main Authors: Ávila Díaz, Julián Arnaldo, Jaramillo, Hector, Franco Arenas, Fernando
• Other Authors: Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria
• Format: Conference Object
• Language: English
• Published: 2012
• Subjects: Àrees temàtiques de la UPC::Enginyeria dels materials; Materials > Mechanical properties; Magnesium > Alloys; FSW; GTAW; AZ31B; Magnesium alloys; Fatigue behavior; Fractograph; Magnesi > Aliatges; Arctic
• Online Access: http://hdl.handle.net/2117/368460; http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?doi=10.1115/OMAE2012-84270; https://doi.org/10.1115/OMAE2012-84270

The mechanical behavior of butt welds made on AZ31B magnesium alloy plates by solid-state friction stir welding (FSW) and gas tungsten arc welding (GTAW) is presented. Fatigue, tensile strength, and hardness tests were performed. Also, fractographic analyses of the weld microstructures were conducted. Tests results show that the fatigue performance of FSW joints was superior to that of conventional welding (GTAW). Peer Reviewed Postprint (published version)