Evaluation of glass-forming ability for metallic glasses from time-reduced temperature-transformation diagram

Akira Takeuchi; Akihisa Inoue

doi:10.2320/matertrans.42.2374

Evaluation of glass-forming ability for metallic glasses from time-reduced temperature-transformation diagram

Akira Takeuchi, Akihisa Inoue

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article

15 Citations (Scopus)

Abstract

Glass forming ability (GFA) for the formation of metallic glasses was evaluated on the basis a of time-reduced temperature transformation diagram using reduced parameters. A equation was proposed for the evaluation of GFA which included a viscosity term at melting temperature (T_m) for calculating the critical cooling rate (R_c) of pure metals and two probability terms incorporated with the thermodynamic quantities. The probability terms were introduced to account for the decrease in R_c for metallic glasses. The results showed that the viscosity at T_m was a key factor for the formation of metallic glasses.

Original language	English
Pages (from-to)	2374-2381
Number of pages	8
Journal	Materials Transactions
Volume	42
Issue number	11
DOIs	https://doi.org/10.2320/matertrans.42.2374
Publication status	Published - 2001 Nov

Keywords

Critical cooling rate
Glass-forming ability
Melting temperature
Metallic glass
Reduced glass transition temperature
Time-reduced temperature-transformation diagram
Viscosity

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Takeuchi, A., & Inoue, A. (2001). Evaluation of glass-forming ability for metallic glasses from time-reduced temperature-transformation diagram. Materials Transactions, 42(11), 2374-2381. https://doi.org/10.2320/matertrans.42.2374

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