Open AccessBook
The theory of transformations in metals and alloys
J.W. Christian,H. M. Otte +1 more
TLDR
In this paper, the authors present a general introduction to the theory of transformation kinetics of real metals, including the formation and evolution of martensitic transformations, as well as a theory of dislocations.Abstract:
Part I General introduction. Formal geometry of crystal lattices. The theory of reaction rates. The thermodynamics of irreversable processes. The structure of real metals. Solids solutions. The theory of dislocations. Polycrystalline aggregates. Diffusion in the solid state. The classical theory of nucleation. Theory of thermally activated growth. Formal theory of transformation kinetics. Part II Growth from the vapour phase. Solidification and melting. Polymorphic Changes. Precipitation from supersaturated solid solution. Eutectoidal transformations. Order-disorder transformations. Recovery recrystalisation and grain growth. Deformation twinning. Characteristics of martensic transformations. Crystallography of martensitic transformations. Kinetics of martensitic transformations. Rapid solidification. Bainite steels. Shape memory alloys.read more
Citations
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Kinetic aspects of nano-crystallization in Finemet-like alloys
TL;DR: In this paper, a non-linear relationship between the evolved enthalpy, used in DSC experiments, and the transformed fraction is found, which can give false values of the preexponential factors in the Johnson-Mehl-Avrami framework, but does not influence the activation energy and the index of the transformation, n.
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The dynamics of nucleation and growth of a thermoelastic martensite in a splat quenched Au-47.5 at.% Cd alloy
P.L Ferraglio,K Mukherjee +1 more
TL;DR: In this paper, the dynamics of nucleation and growth of a thermoelastic martensite in a splat quenched Au-47.5 at.% Cd alloy has been studied utilizing electron microscopy.
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The effect of the thermal path to reach isothermal temperature on transformation kinetics
TL;DR: The concept of the true IT diagram, which depends only on the material considered and which characterizes the transformation independently of the experiment's condition, is presented in this article, and it is possible to predict and derive the influence of the thermal path to reach isothermal temperature on transformation kinetics, and the kinetics of the transformation during continuous change of temperature.
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Barrier free heterogeneous grain nucleation in polycrystalline materials: The austenite to ferrite phase transformation in steel
TL;DR: In this paper, a simple model is proposed to predict the cross-over between different heterogeneous nucleation regimes and apply it to recent synchrotron X-ray diffraction experiments on ferrite nucleation in steel.
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Pseudotwinning and pseudoelasticity in β Fe-Be alloys
Martin L. Green,Morris Cohen +1 more
TL;DR: In this article, an experimental proof of long-standing theories regarding the interaction of order and twinning in β Fe-Be has been presented, based on electron diffraction evidence.