Constitutive Models for Tensile Deformation Behavior of Ti-22Al-25Nb Alloy Sheet at Elevated Temperatures

Yupeng Lu; Lingjian Meng; Hongliang Yin; Peng Lin

Constitutive Models for Tensile Deformation Behavior of Ti-22Al-25Nb Alloy Sheet at Elevated Temperatures

Yupeng Lu
, Lingjian Meng
, Hongliang Yin
, Peng Lin^*

^*Corresponding author for this work

School of Materials Science and Engineering

Taiyuan University of Technology

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

3 Scopus citations

Abstract

Isothermal uniaxial tension tests for O phase-based Ti-22Al-25Nb alloys were conducted at 1203–1283 K with temperature interval of 20 K. The strain rates were 2.5×10⁻⁴, 5.0×10⁻⁴, 1×10⁻³, 2×10⁻³, 4×10⁻³, 1×10⁻², and 5×10⁻² s⁻¹. The microstructures of specimens at different deformation temperatures were characterized. Through the experiment results, the material constants for the constitutive models are determined and the tensile deformation activation energies are 845 165 and 412 779 J/mol at α₂+B2/β+O three-phase region (1203 – 1243 K) and α₂+B2 two-phase region (1243 – 1283 K), respectively. Arrhenius-type constitutive models are constructed to characterize the tensile deformation behavior of Ti-22Al-25Nb alloy at different temperatures.

Translated title of the contribution	Ti-22Al-25Nb 合金板材高温拉伸变形行为的本构模型
Original language	English
Pages (from-to)	785-790
Number of pages	6
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	52
Issue number	3
State	Published - Mar 2023

Keywords

TiAlNb
constitutive model
deformation behavior
microstructure

Cite this

@article{266d27514db749aca41a43e6e2555564,

title = "Constitutive Models for Tensile Deformation Behavior of Ti-22Al-25Nb Alloy Sheet at Elevated Temperatures",

abstract = "Isothermal uniaxial tension tests for O phase-based Ti-22Al-25Nb alloys were conducted at 1203–1283 K with temperature interval of 20 K. The strain rates were 2.5×10−4, 5.0×10−4, 1×10−3, 2×10−3, 4×10−3, 1×10−2, and 5×10−2 s−1. The microstructures of specimens at different deformation temperatures were characterized. Through the experiment results, the material constants for the constitutive models are determined and the tensile deformation activation energies are 845 165 and 412 779 J/mol at α2+B2/β+O three-phase region (1203 – 1243 K) and α2+B2 two-phase region (1243 – 1283 K), respectively. Arrhenius-type constitutive models are constructed to characterize the tensile deformation behavior of Ti-22Al-25Nb alloy at different temperatures.",

keywords = "TiAlNb, constitutive model, deformation behavior, microstructure",

author = "Yupeng Lu and Lingjian Meng and Hongliang Yin and Peng Lin",

year = "2023",

month = mar,

language = "英语",

volume = "52",

pages = "785--790",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "Science Press ",

number = "3",

}

TY - JOUR

T1 - Constitutive Models for Tensile Deformation Behavior of Ti-22Al-25Nb Alloy Sheet at Elevated Temperatures

AU - Lu, Yupeng

AU - Meng, Lingjian

AU - Yin, Hongliang

AU - Lin, Peng

PY - 2023/3

Y1 - 2023/3

N2 - Isothermal uniaxial tension tests for O phase-based Ti-22Al-25Nb alloys were conducted at 1203–1283 K with temperature interval of 20 K. The strain rates were 2.5×10−4, 5.0×10−4, 1×10−3, 2×10−3, 4×10−3, 1×10−2, and 5×10−2 s−1. The microstructures of specimens at different deformation temperatures were characterized. Through the experiment results, the material constants for the constitutive models are determined and the tensile deformation activation energies are 845 165 and 412 779 J/mol at α2+B2/β+O three-phase region (1203 – 1243 K) and α2+B2 two-phase region (1243 – 1283 K), respectively. Arrhenius-type constitutive models are constructed to characterize the tensile deformation behavior of Ti-22Al-25Nb alloy at different temperatures.

AB - Isothermal uniaxial tension tests for O phase-based Ti-22Al-25Nb alloys were conducted at 1203–1283 K with temperature interval of 20 K. The strain rates were 2.5×10−4, 5.0×10−4, 1×10−3, 2×10−3, 4×10−3, 1×10−2, and 5×10−2 s−1. The microstructures of specimens at different deformation temperatures were characterized. Through the experiment results, the material constants for the constitutive models are determined and the tensile deformation activation energies are 845 165 and 412 779 J/mol at α2+B2/β+O three-phase region (1203 – 1243 K) and α2+B2 two-phase region (1243 – 1283 K), respectively. Arrhenius-type constitutive models are constructed to characterize the tensile deformation behavior of Ti-22Al-25Nb alloy at different temperatures.

KW - TiAlNb

KW - constitutive model

KW - deformation behavior

KW - microstructure

UR - https://www.scopus.com/pages/publications/85161009303

M3 - 文章

AN - SCOPUS:85161009303

SN - 1002-185X

VL - 52

SP - 785

EP - 790

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 3

ER -

Constitutive Models for Tensile Deformation Behavior of Ti-22Al-25Nb Alloy Sheet at Elevated Temperatures

Abstract

Keywords

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