Modelling of Recrystallization Curves of Porous Copper-Titanium Powder Materials

Abstract:

In this paper, modelling and plotting of recrystallization curves of copper-titanium powder materials with titanium content of 0.5%, porosity 5% and 10%. The mathematical model that describes an influence of temperature, degree of deformation, strain rate, initial grain size and porosity to grain size after deformation has developed. The interconnection of deforming parameters and structure has presented by function of several variables with analytical expression obtained by method of undetermined coefficients based on experimental data. Theoretical recrystallization curves for copper-titanium powder materials with different porosity have plotted. It has established that porosity decelerates the kinetics of structure formation during dynamical softening of porous powder materials.

• Periodical: Materials Science Forum (Volumes 715-716)
• Pages: 965-970
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.715-716.965
• Online since: April 2012
• Authors: Lyudmila Ryabicheva, Dmytro Usatyuk
• Keywords: Activation Energy, Dynamical Recrystallization, Porosity, Structure Formation

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