Journal of Applied Physics · 1955 · 363 citations · 3 references
Macroscopic DistortionsEngineeringMechanical EngineeringAucd AlloyAnomalous DiffusionPhase SeparationMaterials EngineeringMaterials SciencePhysicsSolid MechanicsCrystallographyAlloy CastingMicrostructurePhase EquilibriumApplied PhysicsCondensed Matter PhysicsAlloy DesignTheoretical StudiesTransformation KineticsAlloy PhaseMetallurgical SystemDiffusionless Phase Transformations
The study presents a theoretical analysis predicting interface planes, orientation relationships, and macroscopic distortions for the cubic‑to‑orthorhombic transformation in AuCd based solely on lattice parameters. The authors develop a strain‑energy minimization framework that identifies zero‑average‑distortion interface planes, leads to inhomogeneous product phases, and validates the predictions with experimental crystallographic data from AuCd. Experimental results for AuCd and other alloys show strong agreement with the theoretical predictions, confirming the diffusionless phase‑transformation theory.
A theoretical analysis of the cubic to orthorhombic transformation is presented which predicts for a partly transformed crystal, the interface plane, orientation relationships, and macroscopic distortions from a knowledge only of the lattice parameters of the initial and final phases. Arguments are advanced to show that in order to minimize the strain energy associated with the transformation, the interface plane must be one of zero average distortion. This leads directly to considerations of an inhomogeneous product phase. Experimental studies on an AuCd alloy are described and the observed crystallographic features of the transformation compared with values calculated using the theory. The agreement between calculated and observed results for this alloy system as well as others is strong evidence for the theory of diffusionless phase transformations presented.
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X-ray Investigation of Gold-Cadmium Alloys Rich in Gold.
Anders Byström, K. E. Almin, Lars Gunnar Sillén et al. · Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry · 1947 · 42 citations · Full text
Materials Engineering, Materials Science, X-ray Spectroscopy +4