Early-stage α-phase and Ti2Cu phase formation in a ternary Ti-V-Cu alloy

Hoi Pang Ng; Arun Devaraj; Soumya Nag; Philip Nakashima; Colleen Bettles; Mark Gibson; Hamish Fraser; Rajarshi Banerjee; Barry Muddle

Early-stage α-phase and Ti₂Cu phase formation in a ternary Ti-V-Cu alloy

Hoi Pang Ng, Arun Devaraj, Soumya Nag, Philip Nakashima, Colleen Bettles, Mark Gibson, Hamish Fraser, Rajarshi Banerjee, Barry Muddle

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The early-stage precipitations of α-phase and Ti₂Cu intermetallic compound have been characterized in a ternary Ti-25V-3Cu alloy. Using aberration-corrected scanning transmission electron microscopy (STEM) and three-dimensional atom probe (3-DAP) .detailed examination of the crys-tallographic structures and compositional partitioning of the nucleation sites was carried out. These techniques have enabled accurate phase identifications of precipitate embryos having a size in the nanometer range, and the geometrical arrangement of the different phases. The results indicate that the α and the intermetallic compound tend to form a mutually-conjugated structure governed by a specific orientation relationship. Upon continued isothermal aging, twin related variants of both phases develop in the β matrix.

Original language	English
Title of host publication	Ti 2011 - Proceedings of the 12th World Conference on Titanium
Pages	564-567
Number of pages	4
State	Published - 2012
Externally published	Yes
Event	12th World Conference on Titanium, Ti 2011 - Beijing, China Duration: Jun 19 2011 → Jun 24 2011

Publication series

Name	Ti 2011 - Proceedings of the 12th World Conference on Titanium
Volume	1

Conference

Conference	12th World Conference on Titanium, Ti 2011
Country/Territory	China
City	Beijing
Period	06/19/11 → 06/24/11

Keywords

Atom probe
Nucleation
Phase transformation
Transmission electron microscopy

Cite this

@inproceedings{95e84f8809cf470fb45e20d0c0ad6459,

title = "Early-stage α-phase and Ti2Cu phase formation in a ternary Ti-V-Cu alloy",

abstract = "The early-stage precipitations of α-phase and Ti2Cu intermetallic compound have been characterized in a ternary Ti-25V-3Cu alloy. Using aberration-corrected scanning transmission electron microscopy (STEM) and three-dimensional atom probe (3-DAP) .detailed examination of the crys-tallographic structures and compositional partitioning of the nucleation sites was carried out. These techniques have enabled accurate phase identifications of precipitate embryos having a size in the nanometer range, and the geometrical arrangement of the different phases. The results indicate that the α and the intermetallic compound tend to form a mutually-conjugated structure governed by a specific orientation relationship. Upon continued isothermal aging, twin related variants of both phases develop in the β matrix.",

keywords = "Atom probe, Nucleation, Phase transformation, Transmission electron microscopy",

author = "Ng, {Hoi Pang} and Arun Devaraj and Soumya Nag and Philip Nakashima and Colleen Bettles and Mark Gibson and Hamish Fraser and Rajarshi Banerjee and Barry Muddle",

year = "2012",

language = "English",

isbn = "9787030338990",

series = "Ti 2011 - Proceedings of the 12th World Conference on Titanium",

pages = "564--567",

booktitle = "Ti 2011 - Proceedings of the 12th World Conference on Titanium",

note = "12th World Conference on Titanium, Ti 2011 ; Conference date: 19-06-2011 Through 24-06-2011",

}

Ng, HP, Devaraj, A, Nag, S, Nakashima, P, Bettles, C, Gibson, M, Fraser, H, Banerjee, R & Muddle, B 2012, Early-stage α-phase and Ti₂Cu phase formation in a ternary Ti-V-Cu alloy. in Ti 2011 - Proceedings of the 12th World Conference on Titanium. Ti 2011 - Proceedings of the 12th World Conference on Titanium, vol. 1, pp. 564-567, 12th World Conference on Titanium, Ti 2011, Beijing, China, 06/19/11.

Early-stage α-phase and Ti₂Cu phase formation in a ternary Ti-V-Cu alloy. / Ng, Hoi Pang; Devaraj, Arun; Nag, Soumya et al.
Ti 2011 - Proceedings of the 12th World Conference on Titanium. 2012. p. 564-567 (Ti 2011 - Proceedings of the 12th World Conference on Titanium; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Early-stage α-phase and Ti2Cu phase formation in a ternary Ti-V-Cu alloy

AU - Ng, Hoi Pang

AU - Devaraj, Arun

AU - Nag, Soumya

AU - Nakashima, Philip

AU - Bettles, Colleen

AU - Gibson, Mark

AU - Fraser, Hamish

AU - Banerjee, Rajarshi

AU - Muddle, Barry

PY - 2012

Y1 - 2012

N2 - The early-stage precipitations of α-phase and Ti2Cu intermetallic compound have been characterized in a ternary Ti-25V-3Cu alloy. Using aberration-corrected scanning transmission electron microscopy (STEM) and three-dimensional atom probe (3-DAP) .detailed examination of the crys-tallographic structures and compositional partitioning of the nucleation sites was carried out. These techniques have enabled accurate phase identifications of precipitate embryos having a size in the nanometer range, and the geometrical arrangement of the different phases. The results indicate that the α and the intermetallic compound tend to form a mutually-conjugated structure governed by a specific orientation relationship. Upon continued isothermal aging, twin related variants of both phases develop in the β matrix.

AB - The early-stage precipitations of α-phase and Ti2Cu intermetallic compound have been characterized in a ternary Ti-25V-3Cu alloy. Using aberration-corrected scanning transmission electron microscopy (STEM) and three-dimensional atom probe (3-DAP) .detailed examination of the crys-tallographic structures and compositional partitioning of the nucleation sites was carried out. These techniques have enabled accurate phase identifications of precipitate embryos having a size in the nanometer range, and the geometrical arrangement of the different phases. The results indicate that the α and the intermetallic compound tend to form a mutually-conjugated structure governed by a specific orientation relationship. Upon continued isothermal aging, twin related variants of both phases develop in the β matrix.

KW - Atom probe

KW - Nucleation

KW - Phase transformation

KW - Transmission electron microscopy

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T3 - Ti 2011 - Proceedings of the 12th World Conference on Titanium

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BT - Ti 2011 - Proceedings of the 12th World Conference on Titanium

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