Open AccessBook
The theory of transformations in metals and alloys
J.W. Christian,H. M. Otte +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.read more
Citations
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TEM investigation of crystallization phenomena in the metallic glass Vitrovac? 0040 (Fe40Ni40B20)
K. Müller,M. von Heimendahl +1 more
TL;DR: The crystallization behavior of the amorphous alloy Fe40Ni40B20 was investigated by transmission electron microscopy (TEM) and light microscopy as discussed by the authors, and three different types of crystals, which occur simultaneously in the temperature range between 355 and 385 C, were formed by time-dependent or athermal nucleation, respectively.
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On the nanometer scale phase separation of a low-supersaturation Ni–Al–Cr alloy
TL;DR: The phase separation of Ni-6.5 Al-9.5 Cr alloy was studied by atom-probe tomography and compared to the predictions of classical precipitation models as mentioned in this paper.
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Crystallization of amorphous Al85Ni10Ce5 alloy
TL;DR: In this paper, the devitrification of melt-spun amorphous Al 85 Ni 10 Ce 5 was studied in continuous heating and isothermal experiments and it was shown that the site density can be as high as 6 × 10 20 m −3.
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Low-temperature transformation kinetics of electron-beam deposited 5 wt.% yttria-stabilized zirconia
Vanni Lughi,David R. Clarke +1 more
TL;DR: The transformation kinetics of ZrO2 coatings stabilized with 5.6 mol% YO1.5 (5YSZ), and deposited by electron-beam physical vapor deposition, were studied between room temperature and 600 °C using in situ Raman spectroscopy, and are described in the form of a transformation-time-temperature diagram as mentioned in this paper.
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Critical cooling rate calculations for glass formation
TL;DR: In this paper, an assessment of the various factors involved in the calculation of critical cooling rates for glass formation is made and attention is focused upon the sensitivity of computed critical cooling rate R c to various approximations and uncertainties in physical parameter data.