Constitutive modeling of near beta titanium alloy Ti555211 based on the internal-state-variable method during hot deformation process

Zhen An; Yong Feng; Jinshan Li; Xianghong Liu; Yuxuan Du; Meiqi Lou; Guangfa Liu; Fengbo Han

Constitutive modeling of near beta titanium alloy Ti555211 based on the internal-state-variable method during hot deformation process

Zhen An, Yong Feng, Jinshan Li, Xianghong Liu, Yuxuan Du, Meiqi Lou, Guangfa Liu, Fengbo Han

School of Materials Sience and Engineering

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

3 Scopus citations

Abstract

Isothermal compression tests of Ti555211 titanium alloy has been conducted on a Gleebe-3800 hot-simulator at the strain rate ranging from 0.001 to 1 s^-1 and the deformation temperature ranging from 750 to 950 ℃. A constitutive model using dislocation density rate as an internal state variable has been proposed for hot working of Ti555211 titanium alloy. According to the isothermal compression test curves, the influence of deformation temperature and stain rate on stress has been investigated. The results show that the correlation coefficient (R) and the average absolute relative error (AARE) for the constitutive model using dislocation density rate as an internal state variable are found to be 0.94277 and 15.25%, respectively, which provide a guide for process optimization and control of near β deformation of Ti555211 titanium alloy.

Original language	English
Pages (from-to)	1902-1907
Number of pages	6
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	43
Issue number	8
State	Published - 1 Aug 2014

Keywords

Constitutive relationship
Near β titanium
Ti555211 titanium alloy

Cite this

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title = "Constitutive modeling of near beta titanium alloy Ti555211 based on the internal-state-variable method during hot deformation process",

abstract = "Isothermal compression tests of Ti555211 titanium alloy has been conducted on a Gleebe-3800 hot-simulator at the strain rate ranging from 0.001 to 1 s-1 and the deformation temperature ranging from 750 to 950 ℃. A constitutive model using dislocation density rate as an internal state variable has been proposed for hot working of Ti555211 titanium alloy. According to the isothermal compression test curves, the influence of deformation temperature and stain rate on stress has been investigated. The results show that the correlation coefficient (R) and the average absolute relative error (AARE) for the constitutive model using dislocation density rate as an internal state variable are found to be 0.94277 and 15.25%, respectively, which provide a guide for process optimization and control of near β deformation of Ti555211 titanium alloy.",

keywords = "Constitutive relationship, Near β titanium, Ti555211 titanium alloy",

author = "Zhen An and Yong Feng and Jinshan Li and Xianghong Liu and Yuxuan Du and Meiqi Lou and Guangfa Liu and Fengbo Han",

year = "2014",

month = aug,

day = "1",

language = "英语",

volume = "43",

pages = "1902--1907",

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issn = "1002-185X",

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TY - JOUR

T1 - Constitutive modeling of near beta titanium alloy Ti555211 based on the internal-state-variable method during hot deformation process

AU - An, Zhen

AU - Feng, Yong

AU - Li, Jinshan

AU - Liu, Xianghong

AU - Du, Yuxuan

AU - Lou, Meiqi

AU - Liu, Guangfa

AU - Han, Fengbo

PY - 2014/8/1

Y1 - 2014/8/1

N2 - Isothermal compression tests of Ti555211 titanium alloy has been conducted on a Gleebe-3800 hot-simulator at the strain rate ranging from 0.001 to 1 s-1 and the deformation temperature ranging from 750 to 950 ℃. A constitutive model using dislocation density rate as an internal state variable has been proposed for hot working of Ti555211 titanium alloy. According to the isothermal compression test curves, the influence of deformation temperature and stain rate on stress has been investigated. The results show that the correlation coefficient (R) and the average absolute relative error (AARE) for the constitutive model using dislocation density rate as an internal state variable are found to be 0.94277 and 15.25%, respectively, which provide a guide for process optimization and control of near β deformation of Ti555211 titanium alloy.

AB - Isothermal compression tests of Ti555211 titanium alloy has been conducted on a Gleebe-3800 hot-simulator at the strain rate ranging from 0.001 to 1 s-1 and the deformation temperature ranging from 750 to 950 ℃. A constitutive model using dislocation density rate as an internal state variable has been proposed for hot working of Ti555211 titanium alloy. According to the isothermal compression test curves, the influence of deformation temperature and stain rate on stress has been investigated. The results show that the correlation coefficient (R) and the average absolute relative error (AARE) for the constitutive model using dislocation density rate as an internal state variable are found to be 0.94277 and 15.25%, respectively, which provide a guide for process optimization and control of near β deformation of Ti555211 titanium alloy.

KW - Constitutive relationship

KW - Near β titanium

KW - Ti555211 titanium alloy

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M3 - 文章

AN - SCOPUS:84907246649

SN - 1002-185X

VL - 43

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EP - 1907

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

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

IS - 8

ER -

Constitutive modeling of near beta titanium alloy Ti555211 based on the internal-state-variable method during hot deformation process

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Keywords

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