Transformation kinetics of alloys under non-isothermal conditions

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Transformation kinetics of alloys under non-isothermal conditions

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Publication Article, peer reviewed scientific
Title Transformation kinetics of alloys under non-isothermal conditions
Author(s) Massih, Ali R ; Jernkvist, Lars Olof
Date 2009
English abstract
The overall solid-to-solid phase transformation kinetics under non-isothermal conditions has been modeled by means of the differential equation method. The method requires provisions for expressions of the fraction of the transformed phase in equilibrium condition and the relaxation time for transition as functions of temperature. The thermal history is an input to the model. We have used the method to calculate the time/temperature variation of the volume fraction of the favored phase in the α ⇔ β transition in a zirconium alloy under heating and cooling, in agreement with experimental results. We also present a formulation that accounts for both additive and non-additive phase transformation processes. Moreover, a method based on the concept of path integral, which considers all the possible paths in thermal histories to reach the final state, is suggested.
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Host/Issue Modelling and Simulation in Materials Science and Engineering;5
Volume 17
ISSN 0965-0393
Language eng (iso)
Subject(s) Technology
Research Subject Categories::TECHNOLOGY::Materials science
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