Search Results - "Khachaturyan, A.G."
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The microstructure of dislocated martensitic steel: Theory
Published in Acta materialia (01-09-2014)“…Recent experimental studies of the microstructure of dislocated martensite in low-carbon steel have shown that its superficially complex microstructure is, in…”
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The microstructure of lath martensite in quenched 9Ni steel
Published in Acta materialia (01-05-2014)“…Many of the most useful structural steels have dislocated lath martensitic structures. The microstructures of these steels are complex since each prior…”
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Structurally heterogeneous model of extrinsic magnetostriction for Fe-Ga and similar magnetic alloys. Part I. Decomposition and confined displacive transformation
Published in Metallurgical and materials transactions. A, Physical metallurgy and materials science (01-09-2007)“…A compositionally and structurally heterogeneous model for ferromagnetic alloys has been developed and applied to Fe-Ga alloys that exhibit giant…”
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Three-dimensional phase field model of proper martensitic transformation
Published in Acta materialia (19-04-2001)“…The Phase Field Microelasticity theory is developed for proper multivariant martensitic transformations. The model is based on the exact solution of the…”
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Structurally heterogeneous model of extrinsic magnetostriction for Fe-Ga and similar magnetic alloys. Part II. Giant magnetostriction and elastic softening
Published in Metallurgical and materials transactions. A, Physical metallurgy and materials science (01-09-2007)“…A compositionally and structurally heterogeneous model for decomposing ferromagnetic alloys was developed in Part I of this article, and applied to Fe-Ga…”
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Origin of chessboard-like structures in decomposing alloys. Theoretical model and computer simulation
Published in Acta materialia (01-05-1998)“…The mechanism of formation of a chessboard-like structure observed during coherent decomposition in alloys with several orientation variants of the precipitate…”
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Ferroelectric solid solutions with morphotropic boundary: Rotational instability of polarization, metastable coexistence of phases and nanodomain adaptive states
Published in Philosophical magazine (Abingdon, England) (07-01-2010)“…Ferroelectric solid solutions with different symmetry phases at opposite sides of the perovskite-based pseudo-binary phase diagram are considered. An analysis…”
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The microstructure of as-quenched 12Mn steel
Published in Acta materialia (15-02-2017)“…Fe-12Mn steel has the unique and interesting property that, when quenched to α′ martensite from the austenite phase, it forms an ultrafine grained…”
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Field kinetic model and computer simulation of precipitation of L12 ordered intermetallics from f.c.c. solid solution
Published in Acta materialia (01-05-1998)Get full text
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Atomic-scale modeling of nanostructure formation in Fe–Ga alloys with giant magnetostriction: Cascade ordering and decomposition
Published in Acta materialia (01-04-2011)“…The Fe–Ga body-centered cubic (bcc) alloys within the 15–20 at.% Ga composition range have abnormally high magnetostriction. There is growing evidence that…”
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Three-dimensional phase field model of low-symmetry martensitic transformation in polycrystal: simulation of ζ′ 2 martensite in AuCd alloys
Published in Acta materialia (17-07-2001)“…A three-dimensional phase field model of the martensitic transformation that produces a low symmetry phase in polycrystals is developed. The…”
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Phase field microelasticity modeling of heterogeneous nucleation and growth in martensitic alloys
Published in Acta materialia (2007)“…The phase field model is employed to study the structural mechanism of heterogeneous nucleation in the face-centered cubic to body-centered cubic martensitic…”
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13
Thermodynamics of open two-phase systems with coherent interfaces: Application to metal–hydrogen systems
Published in Acta materialia (2006)“…We develop a thermodynamic theory for the absorption/desorption of interstitial atoms by a solid crystalline host forming a coherent mixture of two phases with…”
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14
Three-dimensional phase field model and simulation of martensitic transformation in multilayer systems under applied stresses
Published in Acta materialia (14-06-2000)“…The phase field microelasticity theory is used to formulate a three-dimensional phase field model of a multivariant martensitic transformation under external…”
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Nanoscale phase field microelasticity theory of dislocations: model and 3D simulations
Published in Acta materialia (13-06-2001)“…The first Phase Field model of evolution of a multi-dislocation system in elastically anisotropic crystal under applied stress is formulated. The model is a…”
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Three-dimensional field model and computer modeling of martensitic transformations
Published in Acta materialia (01-02-1997)“…A three-dimensional (3D) continuum stochastic field kinetic model of martensitic transformations which explicitly takes into account the transformation-induced…”
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17
The transformation sequences in the cubic → tetragonal decomposition
Published in Acta materialia (01-08-2007)“…The decomposition of a generic supersaturated binary cubic solid solution into a mixture of cubic and tetragonal phases is investigated by phase field…”
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Shape instability during precipitate growth in coherent solids
Published in Acta metallurgica et materialia (01-05-1995)“…The effect of coherent elastic strain on shape instabilities during growth of a single precipitate in an elastically anisotropic cubic system is examined. A…”
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Three-dimensional model of precipitation of ordered intermetallics
Published in Acta materialia (28-05-1999)“…The development of the two-phase (f.c.c.+L1 2) coherent microstructure in the prototype Ni–Al superalloy is studied by using the three-dimensional computer…”
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20
Mechanism and modeling of saw-tooth structure formation in the L1{sub 2}-L1{sub 0} two-phase system
Published in Acta materialia (11-05-2000)“…The strain-accommodating mechanism of formation of the saw-tooth microstructure in the LI{sub 2} + LI{sub 0} two-phase ordered system is proposed. To describe…”
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