Bulk metallic glasses (BMGs) possess unique combinations of strength, toughness,
corrosion resistance, damage tolerance and processability. In particular, the effects of
changes in test temperature on hardness/strength of Zr-based and Fe-based BMGs are
being determined via the use of a NIKON hot microhardness tester. Significant
reductions in hardness near the glass transition temperature are exhibited, with strength
evolution during annealing at fixed temperatures. This information is being used to
develop deformation processing windows (i.e. temperature, time, strain rate, etc.) to
create layered/composite BMGs with enhanced strength/toughness combinations.
Applications ranging from micro- electromechanical systems (MEMS) through larger
aerospace structures may be processed. My Ph.D. research involves exploring some of
these novel aspects of BMGs for the creation and evaluation of energy absorbing
structures.
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