Calorimetric Studies of Dissolution Kinetics of Ni2(Cr,Mo) Phase in Ni-Cr-Mo Alloys Using Non-Isothermal Approach

Abstract:

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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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Periodical:

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

Citation:

H.C. Pai et al., "Calorimetric Studies of Dissolution Kinetics of Ni2(Cr,Mo) Phase in Ni-Cr-Mo Alloys Using Non-Isothermal Approach", Defect and Diffusion Forum, Vol. 279, pp. 111-116, 2008

Online since:

August 2008

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$35.00

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