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-toughened BMG composites have been created in a Zr-Ti-based system with mechanical properties comparable with high-performance crystalline alloys. In this work, we present a series of low-density, Ti-based BMG composites with combinations of high strength, tensile ductility, and excellent fracture toughness.
Hofmann
Douglas C
DC
Keck Laboratory of Engineering Materials, California Institute of Technology, Pasadena, CA 91125, USA. dch@caltech.edu
Suh
Jin-Yoo
JY
Wiest
Aaron
A
Lind
Mary-Laura
ML
Demetriou
Marios D
MD
Johnson
William L
WL
D005898:Glass / Q000737:chemistry*; D019563:Mechanics; D013718:Tensile Strength; D014025:Titanium
D014025:Titanium