Constitution modeling and deformation behavior of yttrium bearing TiAl alloy

Yuyong Chen; Fei Yang; Fantao Kong; Shulong Xiao

doi:10.1016/S1002-0721(10)60414-0

Constitution modeling and deformation behavior of yttrium bearing TiAl alloy

Yuyong Chen
, Fei Yang^*
, Fantao Kong
, Shulong Xiao

^*Corresponding author for this work

Harbin Institute of Technology
Guangzhou Research Institute of Non-ferrous Metals

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

14 Scopus citations

Abstract

The deformation flow behaviors of Ti-45Al-5.4V-3.6Nb-0.3Y alloy at different temperatures and strain rates were studied by isothermal compressing simulation test. The apparent activation energy of deformation was calculated to be 402.096 kJ/mol and constitutive equation was established to describe the flow behavior. Microstructure and flow softening observations exhibited that Ti-45Al-5.4V-3.6Nb-0.3Y alloy had bad hot workability at low temperature (lower than 1 100 °C) and high strain rate (higher than 0.5 s^-1) characterized by localization deformation and instability. With deformation temperature higher than 1 150 °C and strain rate lower than 0.01 s ^-1, the alloy owned good hot deformability, and plenty of dynamic recrystallized grains could be observed in the deformed microstructures.

Original language	English
Pages (from-to)	114-118
Number of pages	5
Journal	Journal of Rare Earths
Volume	29
Issue number	2
DOIs	https://doi.org/10.1016/S1002-0721(10)60414-0
State	Published - Feb 2011
Externally published	Yes

Keywords

TiAl alloy
constitutive modeling
deformation behavior
hot workability
rare earths

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10.1016/S1002-0721(10)60414-0

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title = "Constitution modeling and deformation behavior of yttrium bearing TiAl alloy",

abstract = "The deformation flow behaviors of Ti-45Al-5.4V-3.6Nb-0.3Y alloy at different temperatures and strain rates were studied by isothermal compressing simulation test. The apparent activation energy of deformation was calculated to be 402.096 kJ/mol and constitutive equation was established to describe the flow behavior. Microstructure and flow softening observations exhibited that Ti-45Al-5.4V-3.6Nb-0.3Y alloy had bad hot workability at low temperature (lower than 1 100 °C) and high strain rate (higher than 0.5 s-1) characterized by localization deformation and instability. With deformation temperature higher than 1 150 °C and strain rate lower than 0.01 s -1, the alloy owned good hot deformability, and plenty of dynamic recrystallized grains could be observed in the deformed microstructures.",

keywords = "TiAl alloy, constitutive modeling, deformation behavior, hot workability, rare earths",

author = "Yuyong Chen and Fei Yang and Fantao Kong and Shulong Xiao",

year = "2011",

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doi = "10.1016/S1002-0721(10)60414-0",

language = "英语",

volume = "29",

pages = "114--118",

journal = "Journal of Rare Earths",

issn = "1002-0721",

publisher = "Editorial Office of Chinese Rare Earths",

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}

TY - JOUR

T1 - Constitution modeling and deformation behavior of yttrium bearing TiAl alloy

AU - Chen, Yuyong

AU - Yang, Fei

AU - Kong, Fantao

AU - Xiao, Shulong

PY - 2011/2

Y1 - 2011/2

N2 - The deformation flow behaviors of Ti-45Al-5.4V-3.6Nb-0.3Y alloy at different temperatures and strain rates were studied by isothermal compressing simulation test. The apparent activation energy of deformation was calculated to be 402.096 kJ/mol and constitutive equation was established to describe the flow behavior. Microstructure and flow softening observations exhibited that Ti-45Al-5.4V-3.6Nb-0.3Y alloy had bad hot workability at low temperature (lower than 1 100 °C) and high strain rate (higher than 0.5 s-1) characterized by localization deformation and instability. With deformation temperature higher than 1 150 °C and strain rate lower than 0.01 s -1, the alloy owned good hot deformability, and plenty of dynamic recrystallized grains could be observed in the deformed microstructures.

AB - The deformation flow behaviors of Ti-45Al-5.4V-3.6Nb-0.3Y alloy at different temperatures and strain rates were studied by isothermal compressing simulation test. The apparent activation energy of deformation was calculated to be 402.096 kJ/mol and constitutive equation was established to describe the flow behavior. Microstructure and flow softening observations exhibited that Ti-45Al-5.4V-3.6Nb-0.3Y alloy had bad hot workability at low temperature (lower than 1 100 °C) and high strain rate (higher than 0.5 s-1) characterized by localization deformation and instability. With deformation temperature higher than 1 150 °C and strain rate lower than 0.01 s -1, the alloy owned good hot deformability, and plenty of dynamic recrystallized grains could be observed in the deformed microstructures.

KW - TiAl alloy

KW - constitutive modeling

KW - deformation behavior

KW - hot workability

KW - rare earths

UR - https://www.scopus.com/pages/publications/79952773355

U2 - 10.1016/S1002-0721(10)60414-0

DO - 10.1016/S1002-0721(10)60414-0

M3 - 文章

AN - SCOPUS:79952773355

SN - 1002-0721

VL - 29

SP - 114

EP - 118

JO - Journal of Rare Earths

JF - Journal of Rare Earths

IS - 2

ER -

Constitution modeling and deformation behavior of yttrium bearing TiAl alloy

Abstract

Keywords

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