Effect of B2-ordered phase on the deformation behavior of Ti-Mo-Al alloys at elevated temperature

Yuanyuan Lu; Jyunpei Yamada; Junya Nakamura; Kyosuke Yoshimi; Hidemi Kato

doi:10.1016/j.jallcom.2016.11.211

Effect of B2-ordered phase on the deformation behavior of Ti-Mo-Al alloys at elevated temperature

Yuanyuan Lu, Jyunpei Yamada, Junya Nakamura, Kyosuke Yoshimi, Hidemi Kato

Tohoku University

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

The microstructures and mechanical properties of as-cast Ti-Mo-Al alloys with various compositions were systematically investigated in this study, aiming to explore the potentials of B2-ordered phase (β₂) in high temperature applications. According to the experimental results, these as-cast Ti-Mo-Al alloys were mainly composed of β₂phase and contained a large number of dislocation walls and sub-grain boundaries. Overall they exhibited a high level of compressive strength at 1073 K, with the maximum value approaching ∼879 MPa. The impressive mechanical properties of β₂-dominating Ti-Mo-Al alloys are related to the excellent stability of B2 structure and extensive dislocation entanglements at elevated temperature.

Original language	English
Pages (from-to)	130-135
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	696
DOIs	https://doi.org/10.1016/j.jallcom.2016.11.211
Publication status	Published - 2017

Keywords

High temperature alloys
Molybdenum
Titanium

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10.1016/j.jallcom.2016.11.211

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title = "Effect of B2-ordered phase on the deformation behavior of Ti-Mo-Al alloys at elevated temperature",

abstract = "The microstructures and mechanical properties of as-cast Ti-Mo-Al alloys with various compositions were systematically investigated in this study, aiming to explore the potentials of B2-ordered phase (β2) in high temperature applications. According to the experimental results, these as-cast Ti-Mo-Al alloys were mainly composed of β2phase and contained a large number of dislocation walls and sub-grain boundaries. Overall they exhibited a high level of compressive strength at 1073 K, with the maximum value approaching ∼879 MPa. The impressive mechanical properties of β2-dominating Ti-Mo-Al alloys are related to the excellent stability of B2 structure and extensive dislocation entanglements at elevated temperature.",

keywords = "High temperature alloys, Molybdenum, Titanium",

author = "Yuanyuan Lu and Jyunpei Yamada and Junya Nakamura and Kyosuke Yoshimi and Hidemi Kato",

note = "Funding Information: The authors are very grateful for the financial support from the New Energy and Industrial Technology Department Organization (NEDO) in Japan through the Energy and Environment New Technology Leading Program No. P14004 . Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

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T1 - Effect of B2-ordered phase on the deformation behavior of Ti-Mo-Al alloys at elevated temperature

AU - Lu, Yuanyuan

AU - Yamada, Jyunpei

AU - Nakamura, Junya

AU - Yoshimi, Kyosuke

AU - Kato, Hidemi

N1 - Funding Information: The authors are very grateful for the financial support from the New Energy and Industrial Technology Department Organization (NEDO) in Japan through the Energy and Environment New Technology Leading Program No. P14004 . Publisher Copyright: © 2016 Elsevier B.V.

PY - 2017

Y1 - 2017

N2 - The microstructures and mechanical properties of as-cast Ti-Mo-Al alloys with various compositions were systematically investigated in this study, aiming to explore the potentials of B2-ordered phase (β2) in high temperature applications. According to the experimental results, these as-cast Ti-Mo-Al alloys were mainly composed of β2phase and contained a large number of dislocation walls and sub-grain boundaries. Overall they exhibited a high level of compressive strength at 1073 K, with the maximum value approaching ∼879 MPa. The impressive mechanical properties of β2-dominating Ti-Mo-Al alloys are related to the excellent stability of B2 structure and extensive dislocation entanglements at elevated temperature.

AB - The microstructures and mechanical properties of as-cast Ti-Mo-Al alloys with various compositions were systematically investigated in this study, aiming to explore the potentials of B2-ordered phase (β2) in high temperature applications. According to the experimental results, these as-cast Ti-Mo-Al alloys were mainly composed of β2phase and contained a large number of dislocation walls and sub-grain boundaries. Overall they exhibited a high level of compressive strength at 1073 K, with the maximum value approaching ∼879 MPa. The impressive mechanical properties of β2-dominating Ti-Mo-Al alloys are related to the excellent stability of B2 structure and extensive dislocation entanglements at elevated temperature.

KW - High temperature alloys

KW - Molybdenum

KW - Titanium

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Effect of B2-ordered phase on the deformation behavior of Ti-Mo-Al alloys at elevated temperature

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Keywords

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