Mathematical modelling of peritectic transformation in binary systems

Das, A and Manna, I and Pabi, S K (1996) Mathematical modelling of peritectic transformation in binary systems. In: Proceedings of the National Seminar on Computer Applications in Materials & Metallurgical Engineering, Dec. 10-11, 1996, NML, Jamshedpur.



A simple diffusional analysis of peritectic transformat-ion based on the linearized concentration gradient approximation and a rigorous numerical model of the peri-tectic transformation as well as the solid state homo-genization process following liquid depletion has been presented.The overall and interface mass balance equations are utilized to calculate the rate of movement of the interfaces in the finite geometry. The predictions of the present models, show a better agreement with the experi-mentally determined kinetic data from the Cd-Ag and Pd-Bi systems as compared to those by the earlier proposed 'models based on quasi-static interface or time-invariant or Laplacian concentration profiles. However, the computed kinetics differ from the observed rates of transformation at a later stage (-50% transformation), perhaps, due to the deviation from the idealized cell configuration consi-dered in the calculations.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:Mathematical modelling; peritectic transformation; binary systems; finite geometry
Divisions:Mathematical Modelling and Simulation
ID Code:5599
Deposited By:Sahu A K
Deposited On:22 Jun 2012 14:40
Last Modified:22 Jun 2012 14:40
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