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The theory of transformations in metals and alloys

J.W. Christian, +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.

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Journal ArticleDOI

A Study on Ternary Ti-rich TiNiZr Shape Memory Alloys

TL;DR: In this article, the authors studied the effect of cold rolling and thermal cycling on martensitic transformation in Ti50.5-XNi49.5 and Ti51.5ZrX alloys by using thermomechanical treatments.
Journal ArticleDOI

Some phase transformations in steels

TL;DR: In this article, the Avrami approach is applied to the design of novel steels, such as martensite and bainite, and the application of the theory to creep resistant and structural steels is illustrated with example calculations.
Journal ArticleDOI

The mechanisms of the fcc-bcc martensitic transformation revealed by pole figures

TL;DR: In this article, a new theory of martensite transformation that is in full agreement with the experimental pole figures is proposed, which results from a fcc-hexagonal close-packed (hcp) step followed by an hcp-bcc step.
Journal ArticleDOI

Crystallographic theories, interface structures, and transformation mechanisms

TL;DR: In this article, the structure and properties of an idealized planar interface that traverses a single crystal of the parent phase are discussed, and a (macroscopic) coherent interface is defined in terms of a relatively coarse-grained Larche-Cahn network related to the observed shape deformation.