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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

Direct observation of crystallization in silicon by in situ high-resolution electron microscopy

TL;DR: In this paper, the nucleation and growth of crystalline silicon was studied in situhigh-resolution electron microscopy and the critical radius was estimated as 2.5±1.0 nm and the interfacial energy as 600±200 mJ m−2.
Journal ArticleDOI

Sensitisation and Evolution of Chromium-depleted Zones in Fe-Cr-Ni-C Systems

TL;DR: In this paper, the development of chromium concentration profiles in austenitic stainless steels, due to the grain boundary precipitation of carbides has been modelled, taking account of multicomponent effects, both in the estimation of the state of equilibrium at the carbide/matrix interface and in diffusion.
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The application of advances in quench factor analysis property prediction to the heat treatment of 7010 aluminium alloy

TL;DR: In this paper, the effect of remaining solute on nucleation rate as a function of temperature has been investigated in Al-Zn-Mg-Cu forging and plate alloy.
Journal ArticleDOI

Atoms and nanoparticles of transition metals as catalysts for hydrogen desorption from magnesium hydride

TL;DR: In this article, the authors studied the hydrogen desorption kinetics of composite materials made of magnesium hydride with transition metal additives (TM: Nb, Fe, and Zr).
Journal ArticleDOI

Evidence for a monoclinic incommensurate superstructure in modulated martensite

TL;DR: In this article, a polycrystalline Ni 53 Mn 22 Ga 25 alloy with high-resolution Kikuchi patterns was compared with those predicted according to various hypotheses (7M(IC) or nanotwin combination structure) on the modulated martensite.