Analysis of the effect of friction stir welding on the minimum creep rate of an Mg-3% Al-1% Zn alloy

作者：Spigarelli S^*; Regev M; El Mehtedi M; Quercetti G; Cabibbo M

来源：Scripta Materialia, 2011, 65(7): 626-629.

DOI：10.1016/j.scriptamat.2011.06.042

• Creep tests
• Magnesium alloys
• Friction stir welding
• Microstructure

The creep response of a magnesium alloy friction stir welded joint has been investigated. The creep rates at 100 and 200 degrees C were lower in the cross-weld samples than in the base material. At 300 degrees C the creep rates of the welded samples overlap those obtained in the base material. This behavior, as a whole, was attributed to the overheating experienced by the weld metal, resulting in an increase in the amount of aluminum in solid solution and in grain growth.

• 出版日期2011-10