Hot working parameters optimization of TC4-DT titanium alloy based on processing maps considering true strain

Jianglin Liu; Weidong Zeng; Ying Shu; Yingjie Xie; Jianchao Yang

Hot working parameters optimization of TC4-DT titanium alloy based on processing maps considering true strain

Jianglin Liu, Weidong Zeng, Ying Shu, Yingjie Xie, Jianchao Yang

School of Materials Sience and Engineering

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

12 Scopus citations

Abstract

Elevated-temperature flow behavior of TC4-DT titanium alloy was investigated by isothermal hot compression tests at strain rate from 0.01 to 10 s^-1 and temperature of 1181~1341 K on Gleeble-3500 simulator. Three criterions including sensitive index of the strain rate (m-value), power dissipation factor (η-value) and flow instability (ξ-value) at different strains were analyzed by the principle of processing maps. As a result, the temperature at 1181~1341 K and strain rate of 0.01~0.79 s^-1 is the optimum region in which dynamic recovery/dynamic recrystallization (DRV/DRX) occurs, and the corresponding power-dissipation efficiency is about 45%. The alloy exhibits flow instability regimes due to flow localization at higher strain rates (>1 s^-1).

Original language	English
Pages (from-to)	1647-1653
Number of pages	7
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	45
Issue number	7
State	Published - 1 Jul 2016

Keywords

Hot working parameters
Microstructure
Processing maps
TC4-DT titanium alloy

Cite this

@article{6d3514f4dd2f471595dbf392627cef84,

title = "Hot working parameters optimization of TC4-DT titanium alloy based on processing maps considering true strain",

abstract = "Elevated-temperature flow behavior of TC4-DT titanium alloy was investigated by isothermal hot compression tests at strain rate from 0.01 to 10 s-1 and temperature of 1181~1341 K on Gleeble-3500 simulator. Three criterions including sensitive index of the strain rate (m-value), power dissipation factor (η-value) and flow instability (ξ-value) at different strains were analyzed by the principle of processing maps. As a result, the temperature at 1181~1341 K and strain rate of 0.01~0.79 s-1 is the optimum region in which dynamic recovery/dynamic recrystallization (DRV/DRX) occurs, and the corresponding power-dissipation efficiency is about 45%. The alloy exhibits flow instability regimes due to flow localization at higher strain rates (>1 s-1).",

keywords = "Hot working parameters, Microstructure, Processing maps, TC4-DT titanium alloy",

author = "Jianglin Liu and Weidong Zeng and Ying Shu and Yingjie Xie and Jianchao Yang",

year = "2016",

month = jul,

day = "1",

language = "英语",

volume = "45",

pages = "1647--1653",

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

issn = "1002-185X",

publisher = "Science Press ",

number = "7",

}

TY - JOUR

T1 - Hot working parameters optimization of TC4-DT titanium alloy based on processing maps considering true strain

AU - Liu, Jianglin

AU - Zeng, Weidong

AU - Shu, Ying

AU - Xie, Yingjie

AU - Yang, Jianchao

PY - 2016/7/1

Y1 - 2016/7/1

N2 - Elevated-temperature flow behavior of TC4-DT titanium alloy was investigated by isothermal hot compression tests at strain rate from 0.01 to 10 s-1 and temperature of 1181~1341 K on Gleeble-3500 simulator. Three criterions including sensitive index of the strain rate (m-value), power dissipation factor (η-value) and flow instability (ξ-value) at different strains were analyzed by the principle of processing maps. As a result, the temperature at 1181~1341 K and strain rate of 0.01~0.79 s-1 is the optimum region in which dynamic recovery/dynamic recrystallization (DRV/DRX) occurs, and the corresponding power-dissipation efficiency is about 45%. The alloy exhibits flow instability regimes due to flow localization at higher strain rates (>1 s-1).

AB - Elevated-temperature flow behavior of TC4-DT titanium alloy was investigated by isothermal hot compression tests at strain rate from 0.01 to 10 s-1 and temperature of 1181~1341 K on Gleeble-3500 simulator. Three criterions including sensitive index of the strain rate (m-value), power dissipation factor (η-value) and flow instability (ξ-value) at different strains were analyzed by the principle of processing maps. As a result, the temperature at 1181~1341 K and strain rate of 0.01~0.79 s-1 is the optimum region in which dynamic recovery/dynamic recrystallization (DRV/DRX) occurs, and the corresponding power-dissipation efficiency is about 45%. The alloy exhibits flow instability regimes due to flow localization at higher strain rates (>1 s-1).

KW - Hot working parameters

KW - Microstructure

KW - Processing maps

KW - TC4-DT titanium alloy

UR - http://www.scopus.com/inward/record.url?scp=84981357568&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:84981357568

SN - 1002-185X

VL - 45

SP - 1647

EP - 1653

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

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

IS - 7

ER -

Hot working parameters optimization of TC4-DT titanium alloy based on processing maps considering true strain

Abstract

Keywords

Other files and links

Fingerprint

Cite this