Bulk metallic glass (BMG) strips of Cu54Ni6Zr22Ti18 were produced by warm rolling of the amorphous powder canned with copper. Controlling of temperatures of the rolled sample and rolls was essential for the successive rolling process. Because improper controlling of the sample temperature gave rise to the crystallization of BMG leading to the catastrophic fracture of BMG strips, the temperature of rolls should be properly controlled for achieving successful powder rolling of BMG. The variations of the strain state and temperature in the roll gap was simulated by the finite element method (FEM) using various roll temperatures.
Bibliographical noteFunding Information:
This work is supported by the next generation new technology development program of ministry of commerce, industry and energy in Korea.
- Bulk metallic glass (BMG)
- Finite element method (FEM)
- Powder rolling
ASJC Scopus subject areas
- Ceramics and Composites
- Computer Science Applications
- Metals and Alloys
- Industrial and Manufacturing Engineering