Abstract:Cryo-cooled
copper-mold suction casting reveals an unexpected phase
separation (PS) in Cu46Zr46Al8 bulk
metallic glass (BMG) by controlled atomic diffusion. The decomposed
alloy cryo-cast to 193 K exhibits a remarkably lower free volume than
the alloy cast to room temperature manifested by dilatometry. An unusual
endotherm after the onset of relaxation registered by differential
scanning calorimetry and compositional homogenization occurring on
long time scales upon post-heat treatment even above the glass-tra… Show more
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