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Phase decomposition

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Published: 27 April 2016
Fig. 20 Phase decomposition for the Fe-30Mo (at.%). (a) Two-dimensional time development. (b) Three-dimensional simulation. Source: Ref 12 as published in Ref 9 More
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Published: 01 December 2004
Fig. 8 Phase decomposition for the Fe-30Mo (at.%). (a) Two-dimensional time development. (b) Three-dimensional simulation. Source: Ref 6 More
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005409
EISBN: 978-1-62708-196-2
... Abstract This article focuses on the modeling of microstructure evolution during thermomechanical processing in the two-phase field for alpha/beta and beta titanium alloys. It also discusses the mechanisms of spheroidization, the coarsening, particle growth, and phase decomposition in titanium...
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Published: 01 October 2014
Fig. 6 Plan view thin-foil bright-field transmission electron microscopy image showing grains A, B, and C of expanded austenite and their respective selected-area electron diffraction patterns. Some phase-decomposition regions are indicated on the B grain surface (white arrows More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003732
EISBN: 978-1-62708-177-1
... Abstract Spinodal transformation is a phase-separation reaction that occurs from kinetic behavior. This article discusses the theory of spinodal decomposition, and outlines the methods used in the characterization of spinodal structures in metal matrices. microstructure spinodal...
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006229
EISBN: 978-1-62708-163-4
... decomposition has been particularly useful in the production of permanent magnet materials, because the morphologies favor high magnetic coercivities. It also describes the theory of spinodal decomposition with a simple binary phase diagram. alloy phases binary phase diagram chemical composition...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006300
EISBN: 978-1-62708-179-5
... Abstract This article discusses the stable and metastable three-phase fields in the binary Fe-C phase diagram. It schematically illustrates that austenite decomposition requires accounting for nucleation and growth of ferrite and then nucleation and growth of pearlite in the remaining...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006331
EISBN: 978-1-62708-179-5
... of formation by introducing the scalar relation, known as the additive strain decomposition. The main factors influencing casting deformation are volume changes during solidification and cooling, phase transformations, alloy composition, thermal gradients, casting geometry, and mold stability. The article...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003730
EISBN: 978-1-62708-177-1
... fine scale and resistant to microstructural coarsening. Structures in which each phase is closely interconnected can result from spinodal decomposition. These spinodal structures are on the nanometer scale. They are characterized by their high degree of connectivity and often by crystallographic...
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Published: 01 January 1990
Fig. 5 Generalized time-temperature-transformation diagram showing heat treatments employed with uranium alloys. Slow cooling results in diffusional decomposition of γ phase to coarse dual-phase microstructures. Quenching results in diffusionless transformation of γ phase to supersaturated More
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Published: 01 December 2004
Fig. 36 Bright-field micrograph of cast U-0.3Mo showing two-phase lamellar structure resulting from eutectoid decomposition of β phase. Etched using procedure 1 in Table 5 . 1500×. Courtesy of M.M. Lappin More
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Published: 01 December 2004
Fig. 51 Differential interference contrast (DIC) light micrograph of cast U-6.0Nb showing two-phase lamellar structure resulting from monotectoid decomposition of the α phase. Electropolished with 5% H 3 PO 4 , electroetched using procedure 2 in Table 5 . 1000×. Courtesy of A. Kelly More
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Published: 01 December 2004
Fig. 4 Miscibility gap. Region 1: homogenous α is stable. Region 2: homogenous α is metastable, only incoherent phases can nucleate. Region 3: homogeneous α metastable, coherent phases can nucleate. Region 4: homogeneous α unstable, spinodal decomposition occurs. Source: Ref 4 More
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Published: 27 April 2016
Fig. 16 Miscibility gap. Region 1: Homogenous α is stable. Region 2: Homogenous α is metastable; only incoherent phases can nucleate. Region 3: Homogeneous α is metastable; coherent phases can nucleate. Region 4: Homogeneous α is unstable; spinodal decomposition occurs. Source: Ref 10 More
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Published: 01 January 1996
Fig. 21 Electron micrographs of aged type 308 weld. (a) Aged at 475 ° C for 1000 h, showing mottled structure indicative of spinodal decomposition of the δ-ferrite and extensive G-phase precipitation. (b) Aged at 475 °C for 4950 h, showing M 23 C 6 carbides at austenitic-ferrite interface More
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Published: 01 June 2016
Fig. 34 Two sequences for the formation of a two-phase mixture by diffusion processes. (a) Classical nucleation and growth. (b) Spinodal decomposition More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003780
EISBN: 978-1-62708-177-1
... cooling permits the γ phase to decompose to two-phase structures morphologically similar to pearlite in steels. Rapid quenching suppresses these diffusional decomposition modes, resulting in various metastable phases. Fig. 1 Polymorphism and solubilities of alloying elements in uranium. Note...
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Published: 01 December 2004
Fig. 7 Backscatter scanning electron micrograph of an iron-copper alloy that was rapidly solidified after undergoing liquid-phase spinodal decomposition. Source: Ref 5 More
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Published: 27 April 2016
Fig. 13 Two sequences for the formation of a two-phase mixture by diffusion processes. (a) Classical nucleation and growth. (b) Spinodal decomposition. Source: Ref 8 as published in Ref 9 More
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Published: 01 December 2004
Fig. 1 Two sequences for the formation of a two-phase mixture by diffusion processes. (a) Classical nucleation and growth. (b) Spinodal decomposition. Source: Adapted from Ref 1 , 2 More