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.
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TL;DR: In this paper, it was shown that the Cu 55 Zr 30 Ti 10 Co 5 bulk metallic glass exhibits a high compressive fracture strength of 2.31 GPa and Young's modulus of 130 GPa, values that are higher than those of other Cu- and Zr-based metallic glasses.
Abstract: Cu 55 Zr 30 Ti 10 Co 5 bulk metallic glass exhibits a high compressive fracture strength of 2.31 GPa and Young's modulus of 130 GPa, values that are higher than those of other Cu- and Zr-based metallic glasses. The addition of Co to the ternary Cu-Zr-Ti alloy stabilizes the supercooled liquid. On heating, the Cu 55 Zr 30 Ti 10 Co 5 metallic glass devitrified and formed an intermediate intermetallic compound prior to reaching equilibrium by diffusion-controlled growth at constant nucleation rate. In the fully annealed state the structure consists of the equilibrium Cu 10 Zr 7 phase with the slightly reduced lattice parameters a = 0.933 nm, b = 0.928 nm and c = 1.254 nm and a small fraction of an unidentified phase.
46 citations
TL;DR: In this article, the authors investigate the cooling-induced growth of the metastable heptahydrate crystal phase by combining nuclear magnetic resonance, for non-destructive measurement of the concentration, with time-lapse microscopy, to visualize the crystal growth.
46 citations
TL;DR: In this paper, the dissolution kinetics of gamma' particles in binary Ni-Al alloys with different initial particle size distributions (PSD) were studied using a 3D quantitative phase field model.
46 citations
01 Sep 1971
TL;DR: In this article, the applicability of the phenomenological crystallographic theory to martensitic transformations in ferrous alloys is discussed, and it is concluded that only for the {3, 15, 10}====== and {252}====== F====== transformations are experimental data sufficiently complete for detailed comparisons with predictions of the theory.
Abstract: The applicability of the phenomenological crystallographic theory to martensitic transformations in ferrous alloys is discussed, and it is concluded that only for the {3, 15, 10}
F
and {252}
F
transformations are experimental data sufficiently complete for detailed comparisons with predictions of the theory. Since crystallographic measurements have proved more difficult to obtain in the {252}F case a detailed assessment of electron microscopy observations and of reported measurements of the shape strain and orientation relationship is given for this transformation. The basic theory introduced, in the 1950's accounts satisfactorily for the {3, 15, 10}
F
transformation but not for the {252}
F
, case. Recent modifications of the theory based on multiple lattice invariant shears are also reviewed and are examined in the light of the crystallographic measurements. The use of experimental information to infer possible inhomogeneous deformation modes is emphasized.
46 citations
TL;DR: In this article, lattice statics simulations of zirconium crystals containing mixed-mode basal cracks with [ 1 ¯ 2 1¯ 0 ] and [ 1 1 ¯ 0 0 ] front orientations were carried out using an embedded-atom method potential.
46 citations