Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Theory for multicomponent diffusional kinetics and its application to the reaustenitisation of dual phase and TRIP steels. / Del Castillo, Pedro E.J.Rivera Díaz; Xu, Wei; Van Der Zwaag, Sybrand.
Proceedings of an International Conference on Solid - Solid Phase Transformations in Inorganic Materials 2005, Volume 2: Displacive Transformations. ed. / James M. Howe. Vol. 2 Wiley, 2005. p. 801-810.Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Theory for multicomponent diffusional kinetics and its application to the reaustenitisation of dual phase and TRIP steels
AU - Del Castillo, Pedro E.J.Rivera Díaz
AU - Xu, Wei
AU - Van Der Zwaag, Sybrand
PY - 2005/12/1
Y1 - 2005/12/1
N2 - A general solution for the diffusion equation applied to moving interfaces in multicomponent systems is presented. The solution is simultaneously solved with the chemical potential equations describing multicomponent thermodynamic equilibrium, ensuring local equilibrium at the interface. Phase kinetics and thermodynamics are rigorously linked irrespective of the number of solutes in the system and their difference in diffusivity. The mathematical compactness of the equations resulted in an increase of the computations speed as compared to other approaches. The model is applied to calculate the reaustenitisation kinetics for TRIP and Dual Phase steels with four and more components. The progress in ferrite, cementite and austenite compositions and volume fraction for a variety of heating rates and isothermal holding temperatures is presented.
AB - A general solution for the diffusion equation applied to moving interfaces in multicomponent systems is presented. The solution is simultaneously solved with the chemical potential equations describing multicomponent thermodynamic equilibrium, ensuring local equilibrium at the interface. Phase kinetics and thermodynamics are rigorously linked irrespective of the number of solutes in the system and their difference in diffusivity. The mathematical compactness of the equations resulted in an increase of the computations speed as compared to other approaches. The model is applied to calculate the reaustenitisation kinetics for TRIP and Dual Phase steels with four and more components. The progress in ferrite, cementite and austenite compositions and volume fraction for a variety of heating rates and isothermal holding temperatures is presented.
KW - Kinetics
KW - Multicomponent
KW - Reaustenitisation
KW - Steel
KW - Thermodynamics
M3 - Conference contribution/Paper
AN - SCOPUS:33645224604
SN - 0873396081
SN - 9780873396080
VL - 2
SP - 801
EP - 810
BT - Proceedings of an International Conference on Solid - Solid Phase Transformations in Inorganic Materials 2005, Volume 2: Displacive Transformations
A2 - Howe, James M.
PB - Wiley
T2 - International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005
Y2 - 29 May 2005 through 3 June 2005
ER -