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Making flexible metallic glasses
Well-known for its high yield strength, metallic glass often suffers from its low ductility and intrinsic brittleness, as discussed in a recent iMech jClub theme on plasticity and failure in metallic glasses led by Yanfei Gao.
Prof. William L. Johnson 's group in Caltech recently demonstrated a new design of metallic glass with significant increase in tensile ductility, by adding crystalline inclusions. For example, the tensile ductility is increased typically to more than 10%, and fracture
toughness is enhanced to the extent comparable to titanium or steel alloys. Their research has recently been published in Nature.
- Teng Li's blog
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