Calorimetric Studies of Dissolution Kinetics of Ni2(Cr,Mo) Phase in Ni-Cr-Mo Alloys Using Non-Isothermal Approach |
| Journal |
Defect and Diffusion Forum (Volume 279) |
| Volume |
Phase Transformation and Diffusion |
| Edited by |
G. B. Kale, M. Sundararaman, G. K. Dey and G. P. Tiwari |
| Pages |
111-116 |
| DOI |
10.4028/www.scientific.net/DDF.279.111 |
| Online since |
August, 2008 |
| Authors |
H.C. Pai,
B.C. Maji,
A. Biswas,
K. Madangopal,
M. Sundararaman
|
| Keywords |
Activation Energy, Dissolution Kinetics, Dye-Sensitized Solar Cell (DSC), Ni2(Cr,Mo) Phase, Ni-Cr-Mo Alloys |
| Abstract |
The kinetics of dissolution of ordered phase with Pt2Mo structure has been studied in two
nickel chromium alloys – one without molybdenum and another with molybdenum - using
differential scanning calorimetry. The activation energy for dissolution, determined using three nonisothermal
approaches was found to be ~ 418 kJ /mole for both the alloys. This value agreed very
well with the activation energy for coarsening of g″ precipitates in Ni-Cr-Mo matrix and is close to
activation energy for mobility of chromium and molybdenum in complex nickel alloy matrix. |
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