Please use this identifier to cite or link to this item: https://doi.org/10.1088/0953-8984/15/45/001
Title: Correlations between the glass transition, crystallization, apparent activation energy and glass forming ability in Fe based amorphous alloys
Authors: Yao, B. 
Ma, H.
Tan, H. 
Zhang, Y. 
Li, Y. 
Issue Date: 19-Nov-2003
Citation: Yao, B., Ma, H., Tan, H., Zhang, Y., Li, Y. (2003-11-19). Correlations between the glass transition, crystallization, apparent activation energy and glass forming ability in Fe based amorphous alloys. Journal of Physics Condensed Matter 15 (45) : 7617-7623. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/15/45/001
Abstract: The glass transition, crystallization, apparent activation energy and glass forming ability (GFA) of a metallic glass as well as their correlations were studied in amorphous alloys of composition Fe91-xB xZr5Nb4(FBZN, 5 ≤ x ≤ 30 at.%) and Fe61-xCoxZr5B30Nb4 (FCZBN, 0 ≤ x ≤ 15 at.%). It was found that the glass transition temperature Tg and the crystallization temperature Tx can be related by a formula, Tx = αTg + β, for each amorphous alloy in the two systems, α and β are constants for a given amorphous alloy, obtained by making measurements using non-isothermal scanning at various heating rates in a differential scanning calorimeter and then applying Lasocka's equation. The apparent activation energy of the glass transition Eg was observed to be directly proportional to α and have a correlation, Eg = 3.527(Tx - β)/T g +1.09, with Tx and Tg. The supercooled liquid region ΔTx, which is used for characterization of the GFA, is related to Eg and Tg by the formula ΔT x = (Eg/3.527-1.309)Tg+β.
Source Title: Journal of Physics Condensed Matter
URI: http://scholarbank.nus.edu.sg/handle/10635/96114
ISSN: 09538984
DOI: 10.1088/0953-8984/15/45/001
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

10
checked on Sep 12, 2018

WEB OF SCIENCETM
Citations

10
checked on Sep 4, 2018

Page view(s)

53
checked on Jun 22, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.