Abstract
ABSTRACTThe effect of addition of gold (Au) on the structure and mechanical properties of (Fe0.5Co0.5)71Nb4Si5B20 BMG alloy was studied. Addition of Au formed crystals in the BMG alloy. Gradual increase in the amount of Au added to the BMG alloy resulted in an increase in the amount of crystallinity and hardness of the alloy. Hardness values in excess of 1100 HV were found in all the alloys with a maximum value of 1245 HV. The thermal transition temperatures were also found to increase with an increasing amount of Au. Corner cracks were produced in the alloy with 1.5 at.-% Au content showing a low indentation fracture toughness value of 2.98 MPa-m0.5.
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