Refractory Mo–Si-Based Glassy Alloy Designed for Ultrahigh Strength and Thermal Stability
- Resource Type
- Authors
- Xiaotong Zhang; Evan Ma; Jian Xu; Wenkui Wang
- Source
- Journal of Materials Research. 20:2910-2913
- Subject
- Materials science
Amorphous metal
Mechanical Engineering
Metallurgy
Condensed Matter Physics
Glassy alloy
Amorphous solid
Mechanics of Materials
Powder metallurgy
General Materials Science
Thermal stability
Composite material
Supercooling
Glass transition
Refractory (planetary science)
- Language
- ISSN
- 2044-5326
0884-2914
Mechanically alloyed Mo44Si26Ta5Zr5Fe3Co12Y5 multicomponent glassy alloy exhibits an exceptionally high glass transition temperature of 1202 K and a crystallization temperature of 1324 K, as well as an ultrahigh hardness of 18 GPa. This example is used to demonstrate metallic glasses that possess extraordinary thermal stability and ultrahigh strength and, at the same time, a wide supercooled liquid region (122 K) that is needed for processing into bulk forms through powder metallurgy routes.