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The theory of transformations in metals and alloys
J.W. Christian,H. M. Otte +1 more
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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
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Sigma phase precipitation in duplex stainless steel 2205
Henrik Sieurin,Rolf Sandström +1 more
TL;DR: Sigma phase precipitation is known to embrittle duplex stainless steel as mentioned in this paper, therefore, heat treatment and welding must be performed carefully. Nucleation and diffusional growth of sigma phase in th...
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An electron microscope investigation of the interfacial structure of semi-coherent precipitates
G. C. Weatherly,R. B. Nicholson +1 more
TL;DR: In this article, a transmission electron microscope study of four semi-coherent precipitates has revealed a misfit dislocation structure at their semi coherent interfaces, and a Burgers vector analysis of the dislocation arrays on each of the precipitates was carried out.
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Homogeneous crystal nucleation in binary metallic melts
Carl V. Thompson,Frans Spaepen +1 more
TL;DR: In this article, the free energy of crystallization is derived from regular solution models for the liquid and solid and is used, together with model-based estimates of the interfacial tension, to calculate the nucleation frequency from the classical theory.
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Some problems with the cumulus theory
TL;DR: In this article, it is shown that plagioclase-pyroxene cumulates from some intrusions (e.g., Jimberlana and Stillwater) may be inverted with light plagiclase-rich cumulates at the base of the layer and heavy pyroxene-rich Cumulates at top.
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Kinetics of crystal nucleation in silicate glasses
TL;DR: In this paper, the authors analyzed the kinetics of volume nucleation in a number of simple systems in which the crystallizing phase has the same composition as the parent glass and showed that the nucleation observed is predominantly homogeneous.