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

^*Corresponding author for this work

Tohoku University

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

15 Scopus citations

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
State	Published - 2017
Externally published	Yes

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 = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.jallcom.2016.11.211",

language = "英语",

volume = "696",

pages = "130--135",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

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

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

UR - https://www.scopus.com/pages/publications/84997191996

U2 - 10.1016/j.jallcom.2016.11.211

DO - 10.1016/j.jallcom.2016.11.211

M3 - 文章

AN - SCOPUS:84997191996

SN - 0925-8388

VL - 696

SP - 130

EP - 135

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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