Influence of remelting on oxidation behaviour and hardness of Sm56Al26Co18 amorphous alloy

The influence of remelting treatment on the oxidation behaviour and the hardness of Sm56Al26Co18 amorphous alloys were investigated by thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction analysis and hardness test apparatus. It was found that the remelting treatment improved the oxidation resistance and hardness of Sm56Al26Co18 amorphous alloy. In addition, the results showed that the oxidation rates of the amorphous ribbons increased as temperature increased, and the hardness of the bulk metallic glassy rods was lower than that of the alloys after annealing.