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The theory of transformations in metals and alloys

J.W. Christian, +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.

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Microstructure and phase selection in containerless processing of Fe-Ni droplets

TL;DR: In this paper, a phase selection map was constructed which relates the predominant phases and microstructures (coarse-dendritic or grain-refined) to the composition and the droplet size.
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Influence of lipid composition, crystallization behavior and microstructure on hardness of palm oil-based margarines

TL;DR: In this paper, two typical commercial palm oil-based margarines, denoted A (complained as with over-hardness) and B (commercially considered as with acceptable hardness), respectively, were compared in terms of hardness, solid fat content (SFC), lipid composition [fatty acid and triacylglycerol (TAG) composition], crystallization behavior and microstructure.
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The influence of γ′-precipitation on the recrystallization of a nickel base superalloy

TL;DR: In this article, the influence of γ′-precipitate dispersions on the recrystallization behavior of the Ni-base superalloy IN 738 LC has been investigated for a re-stallization temperature of 1120°C.
Journal ArticleDOI

Annealing and recrystallization of amorphous silicon carbide produced by ion implantation

TL;DR: The annealing behavior of amorphous SiC layers produced by MeV Si implantation into 6H-SiC has been investigated systematically by means of step height measurements, x-ray diffraction, and optical microscopy.
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Precipitation sequence in niobium-alloyed ferritic stainless steel

TL;DR: In this article, the authors estimate the volume fractions and particle sizes for Fe2Nb (Laves phase) and Fe3Nb3C (M6C) carbide in a 19Cr 0.8Nb steel with good agreement against experimental data.