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Friction Stir Welding of a Commercial 7075 T6 Aluminum Alloy: Grain Refinement, Thermal Stability and Tensile Properties

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Figure

Fig. 2Typical microstructure developed in 7075 Al alloy during FSW. (a)Optical and (b) TEM micrographs.
Fig. 3(a) Typical OIM picture of the microstructure developed and (b)misorientation angle distribution of the FSWed 7075 Al alloy.
Fig. 5A series of microstructures of the FSWed 7075 Al alloy after static annealing for 30 min at the temperatures of (a) 623, (b) 673,(c) 723 and (d), (e) 773 K.
Fig. 7Series of true stress-true strain, �-", curves for FSWed 7075 Alalloy. The �-" curves obtained (a) at a fixed temperature of 673 K and atvarious strain rates and (b) at a fixed initial strain rate of 1 � 10�3 s�1 andat various temperatures.

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