A study by high-resolution electron microscopy of an α<sub>2</sub>+ γ two-phase Ti–40 at.% Al alloy

Yang, Y. S.; Wu, Shyi‐Kaan; Wang, J. Y.

doi:10.1080/01418619308207171

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Cited by 38 publications

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“…It is noted that there is a lamellar phase between Ti 3 Al and Ti 50 Al 50 substrates. In the compositional range with Al between 34 at% and 50 at%, Ti-Al alloys form a two-phase equilibrium between Ti 3 Al (a 2 ) and Ti 50 Al 50 (g), and usually consist of an a 2 /g/a 2 lamellar structure [17]. Although the chemical composition of the lamellar phase in Fig.…”

Section: Resultsmentioning

confidence: 99%

Infrared brazing of Ti50Al50 and Ti–6Al–4V using two Ti-based filler metals

Shiue

Chen

et al. 2008

Intermetallics

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Section: Resultsmentioning

confidence: 99%

Infrared brazing of Ti50Al50 and Ti–6Al–4V using two Ti-based filler metals

Shiue

Chen

et al. 2008

Intermetallics

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Atomic Structures of Linear Singularities at Close-Packed {111}??(0001)?2 Interfaces in a 60Ti-40Al (at%) Alloy

Lay¹,

Loubradou²,

Bonnet³

2000

phys. stat. sol. (a)

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Linear singularities at or near close-packed {111}gk(0001)a 2 interfaces in two-phase g±a 2 alloys play a crucial role in the plastic deformation at submicron scale. This paper presents an analysis of their atomic structures by high resolution electron microscopy using a two-phase 60Ti±40Al (at%) alloy deformed at 600 C. Linear singularities appear as dislocation ledges (DLs) sparsely distributed for electron beam along h110ig, unlike in the case of beam parallel to h101ig. Most of them correspond to already reported Shockley DLs that are two or four {111}g planes high. New singularities are investigated, namely: undissociated 1/2h110ig (or less probably 1/2h101ig) dislocations without ledge, dissociated 1/6h112ig DLs, undissociated and dissociated 1/3h111ig DLs, undissociated and slightly dissociated 1/6h411ig DLs, and slightly dissociated 1/6h521ig DLs. It is shown that some of these DLs separate interfacial facets with different atomic structural units, a point that prior analyzes have suggested. Image simulations using multislice and elasticity calculations are performed to determine unambiguously the positions of the core singularities in the vicinity of each ledge.

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Interfaces in Zr Based Nanocrystals and Combustion Synthesized Ti Aluminide

Dey¹

2002

Science and Technology of Interfaces

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A study by high-resolution electron microscopy of an α₂+ γ two-phase Ti–40 at.% Al alloy

Cited by 38 publications

References 5 publications

Infrared brazing of Ti50Al50 and Ti–6Al–4V using two Ti-based filler metals

Infrared brazing of Ti50Al50 and Ti–6Al–4V using two Ti-based filler metals

Atomic Structures of Linear Singularities at Close-Packed {111}??(0001)?2 Interfaces in a 60Ti-40Al (at%) Alloy

Interfaces in Zr Based Nanocrystals and Combustion Synthesized Ti Aluminide

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A study by high-resolution electron microscopy of an α2+ γ two-phase Ti–40 at.% Al alloy

Cited by 38 publications

References 5 publications

Infrared brazing of Ti50Al50 and Ti–6Al–4V using two Ti-based filler metals

Infrared brazing of Ti50Al50 and Ti–6Al–4V using two Ti-based filler metals

Atomic Structures of Linear Singularities at Close-Packed {111}??(0001)?2 Interfaces in a 60Ti-40Al (at%) Alloy

Interfaces in Zr Based Nanocrystals and Combustion Synthesized Ti Aluminide

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A study by high-resolution electron microscopy of an α₂+ γ two-phase Ti–40 at.% Al alloy