THERMOPLASTIC FORMING OF COLD ROLLED ALLOYS

摘要

The disclosure is directed to methods of forming glassy alloys. A glassy alloy is cold rolled at a temperature less than Tg of the glassy alloy to form a flattened glassy alloy. Then, the cold rolled glassy alloy is thermoplastically formed at a temperature above Tg of the glassy alloy. In certain embodiments, the flattened glassy alloy may have one or more shear bands and/or micro-cracks, and the thermoplastic forming may heal the shear bands and/or micro-cracks. The resulting glassy alloy may thereby have reduced or eliminated shear bands and/or micro-cracks.

主权项

1. A method of forming a glassy alloy comprising:
cold rolling a glassy alloy feedstock at a temperature less than the glass transition temperature (Tg) of the glassy alloy feedstock to form a flattened glassy alloy; and thermoplastically forming the flattened glassy alloy at a temperature at or above Tg of the glassy alloy feedstock to form the glassy alloy.