Evolution of temperature gradients during rolling of Cu54Ni6Zr22Ti18 bulk metallic glass in the super cooled liquid region

H. J. Kim, J. C. Bae, E. S. Park, Jae-chul Lee, Moo Young Huh, D. H. Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)798-800
Number of pages3
JournalJournal of Materials Processing Technology
Volume187-188
DOIs
Publication statusPublished - 2007 Jun 12

Fingerprint

Metallic Glasses
Supercooled Liquid
Metallic glass
Thermal gradients
Gradient
Liquids
Powder
Powders
Strip
Temperature
Crystallization
Copper
Finite Element Method
Finite element method

Keywords

  • Bulk metallic glass (BMG)
  • Finite element method (FEM)
  • Powder rolling

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Evolution of temperature gradients during rolling of Cu54Ni6Zr22Ti18 bulk metallic glass in the super cooled liquid region. / Kim, H. J.; Bae, J. C.; Park, E. S.; Lee, Jae-chul; Huh, Moo Young; Kim, D. H.

In: Journal of Materials Processing Technology, Vol. 187-188, 12.06.2007, p. 798-800.

Research output: Contribution to journalArticle

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