Study on globularization of a lamellar structure in TC17 titanium alloy during hot deformation using processing map

Jun Zhou; Weidong Zeng; Ying Shu; Yigang Zhou

Study on globularization of a lamellar structure in TC17 titanium alloy during hot deformation using processing map

Jun Zhou, Weidong Zeng, Ying Shu, Yigang Zhou

School of Materials Sience and Engineering

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

31 Scopus citations

Abstract

The globularization of a lamellar microstructure in Ti-5Al-4Mo-4Cr-2Sn-2Zr (TC17) alloy was studied using processing map theory. The deformation behavior at elevated temperature and the microstructure evolution under different deformation conditions can be indicated exactly and directly by the processing map. As a result, the deformation at 840°C-870°C and strain rate of 0.5 s^-1-3 s^-1 are the optimum globularization conditions of lamellar microstructure for TC17 alloy, and the corresponding efficiency of power-dissipation is about 45%; TC17 alloy exhibits flow instability regimes due to adiabatic shear bands formation at higher strain rates(>5 s^-1).

Original language	English
Pages (from-to)	265-269
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	35
Issue number	2
State	Published - Feb 2006

Keywords

Flow instability
Globularization
Hot deformation
Processing map
TC17 titanium alloy

Cite this

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title = "Study on globularization of a lamellar structure in TC17 titanium alloy during hot deformation using processing map",

abstract = "The globularization of a lamellar microstructure in Ti-5Al-4Mo-4Cr-2Sn-2Zr (TC17) alloy was studied using processing map theory. The deformation behavior at elevated temperature and the microstructure evolution under different deformation conditions can be indicated exactly and directly by the processing map. As a result, the deformation at 840°C-870°C and strain rate of 0.5 s-1-3 s-1 are the optimum globularization conditions of lamellar microstructure for TC17 alloy, and the corresponding efficiency of power-dissipation is about 45%; TC17 alloy exhibits flow instability regimes due to adiabatic shear bands formation at higher strain rates(>5 s-1).",

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author = "Jun Zhou and Weidong Zeng and Ying Shu and Yigang Zhou",

year = "2006",

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

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T1 - Study on globularization of a lamellar structure in TC17 titanium alloy during hot deformation using processing map

AU - Zhou, Jun

AU - Zeng, Weidong

AU - Shu, Ying

AU - Zhou, Yigang

PY - 2006/2

Y1 - 2006/2

N2 - The globularization of a lamellar microstructure in Ti-5Al-4Mo-4Cr-2Sn-2Zr (TC17) alloy was studied using processing map theory. The deformation behavior at elevated temperature and the microstructure evolution under different deformation conditions can be indicated exactly and directly by the processing map. As a result, the deformation at 840°C-870°C and strain rate of 0.5 s-1-3 s-1 are the optimum globularization conditions of lamellar microstructure for TC17 alloy, and the corresponding efficiency of power-dissipation is about 45%; TC17 alloy exhibits flow instability regimes due to adiabatic shear bands formation at higher strain rates(>5 s-1).

AB - The globularization of a lamellar microstructure in Ti-5Al-4Mo-4Cr-2Sn-2Zr (TC17) alloy was studied using processing map theory. The deformation behavior at elevated temperature and the microstructure evolution under different deformation conditions can be indicated exactly and directly by the processing map. As a result, the deformation at 840°C-870°C and strain rate of 0.5 s-1-3 s-1 are the optimum globularization conditions of lamellar microstructure for TC17 alloy, and the corresponding efficiency of power-dissipation is about 45%; TC17 alloy exhibits flow instability regimes due to adiabatic shear bands formation at higher strain rates(>5 s-1).

KW - Flow instability

KW - Globularization

KW - Hot deformation

KW - Processing map

KW - TC17 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

IS - 2

ER -

Study on globularization of a lamellar structure in TC17 titanium alloy during hot deformation using processing map

Abstract

Keywords

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