Influence of the heat treatment of the melt on the structure and mechanical behaviour of metallic glass ribbons

In this paper, the influence of the production conditions on the quality an d mechanical behaviour of metallic glass ribbons will be presented, taking two amorphous alloys, Ni81P19 and Fe64C21 B-11(15) as examples. These alloy s have been chosen for the numerous results reported, for similar compositi ons, in the literature as well as for the possibility to easily carry out n eutron scattering experiments. All results, from neutron diffraction at sma ll and large angles as well as tensile tests within the Weibull statistics and scanning electron microscopy of the fracture surfaces, show that the be st quality and mechanical properties are achieved after quench from an over heated melt.