Journal ArticleDOI
Spinodal decomposition in age hardening copper-titanium alloys
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In this paper, the early stages of spinodal decomposition in age hardening Cu-Ti alloys have been studied by electron microscopy, and a sequence of microstructures was used to show that continuous phase separation was the mechanism of decomposition.About:
This article is published in Acta Metallurgica.The article was published on 1975-03-01. It has received 229 citations till now. The article focuses on the topics: Spinodal decomposition & Spinodal.read more
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Journal ArticleDOI
Mechanisms of phase transformations within the miscibility gap of Fe-rich Fe-Al alloys
Samuel M. Allen,John W. Cahn +1 more
TL;DR: The coherent phase diagram of the Fe-Al system possesses a tricritical point where a line of higher-order transitions ends at a miscibility gap at about 23 at.% Al and 615°C.
Book ChapterDOI
Configurational Thermodynamics of Solid Solutions
TL;DR: In this article, a review of theoretical models applicable to concentrated solid solutions is presented, focusing on concentrated solutions because dilute ones can be considered as special cases and because the interesting effects of clustering and ordering are most apparent at high solute concentrations.
Journal ArticleDOI
First-principles calculation of structural energetics of Al-TM (TM = Ti, Zr, Hf) intermetallics
Gautam Ghosh,Mark Asta +1 more
TL;DR: In this article, the total energies and equilibrium cohesive properties of 69 intermetallics in the Al-TM (TM = Ti, Zr and Hf) systems are calculated from first-principles employing electronic density-functional theory, ultrasoft pseudopotentials and the generalized gradient approximation.
Reference EntryDOI
Homogeneous Second‐Phase Precipitation
TL;DR: In this paper, the authors defined a cluster-dynamics approach to generalized nucleation theory and compared it with the classical and non-classical nucleation models.
Journal ArticleDOI
The structure and properties of age hardened Cu-Ti alloys
A. Datta,William A. Soffa +1 more
TL;DR: In this paper, electron microscopy and diffraction have been employed to study the microstructural behavior of age hardening Cu-Ti alloys and the results have been correlated with the mechanical properties.
References
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Journal ArticleDOI
On spinodal decomposition in cubic crystals
TL;DR: In this paper, the anisotropy of all factors influencing the mechanism of spinodal decomposition was considered for crystals of cubic symmetry, and it was shown that elastic aeolotropy should give rise to {100} plane waves if 2 C 44 − C 11 + C 12 > 0 or {111} plane wave if 2C 44 − c 11 + c 12
Journal ArticleDOI
On the modulated structure of aged Ni-Al alloys: with an Appendix On the elastic interaction between inclusions by J. D. Eshelby
Alan J. Ardell,R.B Nicholson +1 more
TL;DR: In this paper, it is shown that there exists an elastic interaction between the Ni-6.71 wt.% Al alloy particles arising from the difference between the elastic moduli in the precipitate and the matrix.
Journal ArticleDOI
Early stages of spinodal decomposition in an aluminum-zinc alloy
K.B Rundman,J.E. Hilliard +1 more
TL;DR: In this article, a small-angle X-ray scattering study has been made of isothermal decomposition in an Al-Zn alloy containing 22 at.% Zn, and the changes in the Xray spectra in the early stages of the decomposition at 65°C were in accord with the theory of spinodal decomposition proposed by J.W. Cahn.
Journal ArticleDOI
Structure and properties of spinodally decomposed Cu-Ni-Fe alloys
TL;DR: In this paper, the structural spinodal decomposition and accompanying changes in properties of a 51.5 Cu-33.5 Ni-15.0 Fe alloy after solution treatment and fast quenching were investigated.
Journal ArticleDOI
Diffraction contrast from elastic shear strains due to coherent phases
TL;DR: In this article, it was shown that the appearance of striations parallel to the traces of the 110 planes in the microstructure and relrods normal to these planes in diffraction patterns is a strain contrast effect arising from elastic shear strains induced by conditions of tetragonal coherency in agreement with a model proposed by Tyapkin.