Effect of Strain Rate on Brittle-Ductile Transition Mechanism of the Ti45Al10Nb Alloy with Fully Lamellar Microstructure

Zicheng Liu; Weijiang Zhang; Shujiang Li; Guoliang Chen; Y. W. Kim

Effect of Strain Rate on Brittle-Ductile Transition Mechanism of the Ti45Al10Nb Alloy with Fully Lamellar Microstructure

Zicheng Liu^*
, Weijiang Zhang
, Shujiang Li
, Guoliang Chen
, Y. W. Kim

^*Corresponding author for this work

School of Energy Science and Engineering

University of Science and Technology Beijing
Universal Energy Systems Inc

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

1 Scopus citations

Abstract

The effects of strain rate and temperature on the tensile yield strength and elongation of titanium aluminides are studied. The alloy Ti-45Al-10Nb (at%) has a fully lamellar microstructure. The test results show that the brittle-ductile transition (BDT) temperature increases with the increases of strain rate and temperature. The activation energy is 330kJ/mol, which approximates to the self-diffusion activation energy of atoms in the TiAl alloy. Fractography and dislocation configuration analyses demonstrate that the brittle-ductile transition of the alloy Ti-45Al-10Nb is controlled by dislocation climb.

Original language	English
Pages (from-to)	189
Number of pages	1
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	29
Issue number	3
State	Published - Jun 2000

Keywords

Brittle-ductile transition
Intermetallics
Strain rate
Ti45Al10Nb

Cite this

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title = "Effect of Strain Rate on Brittle-Ductile Transition Mechanism of the Ti45Al10Nb Alloy with Fully Lamellar Microstructure",

abstract = "The effects of strain rate and temperature on the tensile yield strength and elongation of titanium aluminides are studied. The alloy Ti-45Al-10Nb (at\%) has a fully lamellar microstructure. The test results show that the brittle-ductile transition (BDT) temperature increases with the increases of strain rate and temperature. The activation energy is 330kJ/mol, which approximates to the self-diffusion activation energy of atoms in the TiAl alloy. Fractography and dislocation configuration analyses demonstrate that the brittle-ductile transition of the alloy Ti-45Al-10Nb is controlled by dislocation climb.",

keywords = "Brittle-ductile transition, Intermetallics, Strain rate, Ti45Al10Nb",

author = "Zicheng Liu and Weijiang Zhang and Shujiang Li and Guoliang Chen and Kim, \{Y. W.\}",

year = "2000",

month = jun,

language = "英语",

volume = "29",

pages = "189",

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

issn = "1002-185X",

publisher = "Science Press ",

number = "3",

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TY - JOUR

T1 - Effect of Strain Rate on Brittle-Ductile Transition Mechanism of the Ti45Al10Nb Alloy with Fully Lamellar Microstructure

AU - Liu, Zicheng

AU - Zhang, Weijiang

AU - Li, Shujiang

AU - Chen, Guoliang

AU - Kim, Y. W.

PY - 2000/6

Y1 - 2000/6

N2 - The effects of strain rate and temperature on the tensile yield strength and elongation of titanium aluminides are studied. The alloy Ti-45Al-10Nb (at%) has a fully lamellar microstructure. The test results show that the brittle-ductile transition (BDT) temperature increases with the increases of strain rate and temperature. The activation energy is 330kJ/mol, which approximates to the self-diffusion activation energy of atoms in the TiAl alloy. Fractography and dislocation configuration analyses demonstrate that the brittle-ductile transition of the alloy Ti-45Al-10Nb is controlled by dislocation climb.

AB - The effects of strain rate and temperature on the tensile yield strength and elongation of titanium aluminides are studied. The alloy Ti-45Al-10Nb (at%) has a fully lamellar microstructure. The test results show that the brittle-ductile transition (BDT) temperature increases with the increases of strain rate and temperature. The activation energy is 330kJ/mol, which approximates to the self-diffusion activation energy of atoms in the TiAl alloy. Fractography and dislocation configuration analyses demonstrate that the brittle-ductile transition of the alloy Ti-45Al-10Nb is controlled by dislocation climb.

KW - Brittle-ductile transition

KW - Intermetallics

KW - Strain rate

KW - Ti45Al10Nb

UR - https://www.scopus.com/pages/publications/0346300104

M3 - 文章

AN - SCOPUS:0346300104

SN - 1002-185X

VL - 29

SP - 189

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

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

IS - 3

ER -

Effect of Strain Rate on Brittle-Ductile Transition Mechanism of the Ti45Al10Nb Alloy with Fully Lamellar Microstructure

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Keywords

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