The influences of Ag and Co additions on the thermal stability and glass-forming abilities of twenty (Cu46-xZr47Al7Agx)(100)Co--y(y) (x = 0, 1, 2, 3, 4 and y = 0, 0.5, 1, 1.5) alloys were systematically investigated by X-ray diffraction and differential scanning calorimeter techniques. The mechanical performances (i.e., hardness, strength, and plasticity) of the alloys were evaluated, and the plasticization mechanisms of four representative (Cu46-xZr47Al7Agx)(100)Co--y(y) specimens were discussed based on the observations of scanning electron microscopy and high-resolution transmission electro...