Book•
The theory of transformations in metals and alloys
01 Jan 1965-
TL;DR: 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.
Citations
More filters
TL;DR: In this article, the authors review how phase-field models contributed to the understanding of various aspects of crystal nucleation, including homogeneous and heterogeneous processes, and their role in microstructure evolution.
30 citations
[...]
TL;DR: In this paper, a model of a casting is presented which describes the freezing of a mushy zone, growing with a dynamically calculated undercooling at the dendrite tips, which resembles a combination of the Stefan and mushy zones problems.
Abstract: A model of a casting is presented which describes the freezing of a mushy zone, growing with a dynamically calculated undercooling at the dendrite tips. Equiaxed grains are introduced ahead of a columnar front. The model resembles a combination of the Stefan and mushy zone problems.
30 citations
TL;DR: The nucleation and growth of CuAu II formed from a disordered matrix has been investigated in this article using single crystal alloy films prepared by sputtering and the preferred nucleation at dislocations is discussed from a theoretical viewpoint.
30 citations
TL;DR: An atomic transition model of a face-centered cubic (fcc) crystal to a primitive hexagonal ω and body centered cubic (bcc) structures has been crystallographically built as mentioned in this paper.
Abstract: An atomic transition model of a face-centered cubic (fcc) crystal to a primitive hexagonal ω and body-centered cubic (bcc) structures has been crystallographically built. The fcc structure can transform into the ω structure through a local shuffling or displacement of atoms about 0.4014 A in iron for a
fcc iron = 3.59 A. The bcc structure can form either after the ω formation or concurrently by the similar mechanism, or the ω structure can be treated as an intermediate stage during the transition of fcc → bcc. Such a transition (fcc → ω + bcc transition) can be confirmed by Widmanstatten pattern formed in an iron meteorite, pearlitic structure and martensite composed of bcc-ferrite and ultra-fine ω particles in iron–carbon steels. The present fcc–bcc orientation relationship matches with Pitsch’s one.
30 citations
TL;DR: In this paper, the authors developed a numerical model for two different laser sources, including metallurgical transformations during the heating process, and the model was experimentally validated for DIN 1.2379 tool steel.
30 citations