Preparation and Thermal Stability of Au40Cu30Pd10Si20 Metallic Glass with Good Ductility

Bulk metallic glass composite with good tensile ductility, high strength and large elastic strain limit

Bulk metallic glasses exhibit high strength and large elastic strain limit but have no tensile ductility. However, bulk metallic glass composites reinforced by in-situ dendrites possess significantly improved toughness but at the expense of high strength and large elastic strain limit. Here, we report a bulk metallic glass composite with strong strain-hardening capability and large elastic stra...

Gradient Confinement Induced Uniform Tensile Ductility in Metallic Glass

Metallic glass (MG) generally fails in a brittle manner under uniaxial tension loading at room temperature. The lack of plastic strain of MG is due to the severe plastic instability via the easily formed one dominate shear band. There have been several approaches to improve the ductility in MG, but achieving uniform tensile ductility for monolithic MG in bulk size remains a challenge. Here we d...

Designing Bulk Metallic Glass Matr ix Composites with High Toughness and Tensile Ductility

Metallic glasses have been the subject of intense scientific study since the 1960s, owing to their unique properties such as high strength, large elastic limit, high hardness, and amorphous microstructure. However, bulk metallic glasses have not been used in the high strength structural applications for which they have so much potential, owing to a highly localized failure mechanism that result...

Development of tough, low-density titanium-based bulk metallic glass matrix composites with tensile ductility.

The mechanical properties of bulk metallic glasses (BMGs) and their composites have been under intense investigation for many years, owing to their unique combination of high strength and elastic limit. However, because of their highly localized deformation mechanism, BMGs are typically considered to be brittle materials and are not suitable for structural applications. Recently, highly-toughen...

Thermal stability and crystallization kinetics of mechanically alloyed TiC/Ti-based metallic glass matrix composite