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

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

12 引用（Scopus）

摘要

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).

源语言	英语
页（从-至）	1647-1653
页数	7
期刊	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
卷	45
期	7
出版状态	已出版 - 1 7月 2016

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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",

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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

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

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

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ER -

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

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