Thermal analysis study for the phase determination and instable to metastable transformation of the Co-13Cu alloy

The differential thermal analysis (DTA) is utilized to determine the phase boundary and phase equilibria of Co-Cu alloy having a miscibility gap. Regions for various phase i.e., spinodal and coherent binodal, peritectic, magnetic and the transformation from the two phases to α phase transformations...

Full description

Saved in:
Bibliographic Details
Published in:Phase transitions 2009-08, Vol.82 (8), p.587-598
Main Authors: Mebed, A.M., Abd-Elrahman, M.I., Abd-Elnaiem, A.M., Gaffar, M.A.
Format: Article
Language:English
Subjects:
Boundaries
Co-Cu alloy
Cobalt base alloys
Continuity
Copper cobalt alloys
Differential thermal analysis
kinetic parameters
Miscibility gap
Phase boundaries
phase decomposition
phase transformation
Phase transformations
Phase transitions
spinodal
Studies
Transformations
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The differential thermal analysis (DTA) is utilized to determine the phase boundary and phase equilibria of Co-Cu alloy having a miscibility gap. Regions for various phase i.e., spinodal and coherent binodal, peritectic, magnetic and the transformation from the two phases to α phase transformations are distinctly determined for the Co-13 at%Cu alloy. The obtained results might indicate the continuity of the decomposition kinetics at the boundary between instable and the metastable regions but an activation barrier is needed. The activation energy for the magnetic transformation is determined to be 182.2 ± 2.1 kJ mol −1 .
ISSN:0141-1594
1029-0338
DOI:10.1080/01411590903298744