Abstract
The impact toughness and fracture behavior of an Al–Mg-Sc alloy at two different temperatures were investigated. The results reveal that the maximum load at room temperature is slightly higher than that at 120 °C. The total impact displacement for complete fracture of the alloy at room temperature is shorter than that at 120 °C. For fracture, the shear lip area of the room temperature sample is smaller than that of the 120 °C sample. Also, the percentage of intergranular fracture at room temperature is higher than that at 120 °C and the degree of plastic deformation was more severe for the 120 °C sample.
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