Kinetics of simultaneous two-phase precipitation in the Fe-C system

Global Techniques for Characterizing Phase Transformations – A Tutorial Review

“…REVIEW n describing the kinetics and rate of the transformation, respectively. Taking into consideration that precipitation of cementite will destabilize e-carbides, one gets [16] :…”

Comments on the analysis of experimental data in nonisothermal kinetics

“…In this article, I comment on two situaions of interest for the researchers who usually resort to the reaction theory [1][2][3][4][5] to analyze nonisothermal data. [6][7][8][9][10] The first refers to the error introduced when the meaning of isothermal and nonisothermal times are mixed, and in the second, I propose a generic way to analyze nonisothermal data, obviating the considerations regarding specific reaction models and the initial temperature of reactin, T 0 .…”

“…[4], g(␣) ϭ Kt, is valid only for an isothermal process. In that case, b ϭ dT/dt is zero, and no term of any equation containing b can participate in the kinetic equation.…”

“…[11] Accepting that the reaction constant K for an activation energy Q follows an Arrhenius relation, [6] where K 0 and Q are the Arrhenius parameters characteristic of the kinetic under study, we solve the integral of Eq. [4] considering the heating rate b as a constant. I obtain [7] where I use the change of variable X ϭ Q/RT.…”

Comments About the Strengthening Mechanisms in Commercial Microalloyed Steels and Reaction Kinetics on Tempering in Low-Alloy Steels

“…In other works some attempts have been made [34][35][36][37] to deconvolute such experimental master curves into components due to individual processes, but it is difficult to see whether some of these fitting parameters have any physical meaning.…”