Dependence of flow stress of 8. 5Nb-TiAl based alloys on strain rate and temperature

Yan Yunqi; Zhou Lian; Luo Guozhen

Dependence of flow stress of 8. 5Nb-TiAl based alloys on strain rate and temperature

Yan Yunqi
, Zhou Lian
, Luo Guozhen

Northwest Institute for Nonferrous Metal Research

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

Abstract

The behavior of high temperature compression deformation for 8. 5Nb-TiAI based alloys was studied in this paper. Ti45Al-8.5Nb-0.2W-0.2Mo-0.05Y (TAMWY) and Ti-45Al-8. 5Nb-0. 2W-0. 2Mo-0. 3B (TAMWB) exhibit the softening state during the compression tests at 760'C-1 OOO'C. The dual logarithm of true stress and true strain for these two alloys is coincided with linear relationship. At above mentioned temperatures, the strain sensitivity m for TAMWY and TAMWB alloy is 0. 06- 0. 09 and 0. 06-0. 08 respectively. The activation energy of high temperature deformation is 243kJ/mol, 279kJ/moI and 287kJ/ mol for TAMWB alloys 289kJ/mol, 327kJ/mol and 345kJ/mol for TAMWY alloy. These two alloys are deformed easily at 760'C.

Original language	English
Pages (from-to)	217
Number of pages	1
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	30
Issue number	SUPPL. 1
State	Published - 2001
Externally published	Yes

Cite this

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title = "Dependence of flow stress of 8. 5Nb-TiAl based alloys on strain rate and temperature",

abstract = "The behavior of high temperature compression deformation for 8. 5Nb-TiAI based alloys was studied in this paper. Ti45Al-8.5Nb-0.2W-0.2Mo-0.05Y (TAMWY) and Ti-45Al-8. 5Nb-0. 2W-0. 2Mo-0. 3B (TAMWB) exhibit the softening state during the compression tests at 760'C-1 OOO'C. The dual logarithm of true stress and true strain for these two alloys is coincided with linear relationship. At above mentioned temperatures, the strain sensitivity m for TAMWY and TAMWB alloy is 0. 06- 0. 09 and 0. 06-0. 08 respectively. The activation energy of high temperature deformation is 243kJ/mol, 279kJ/moI and 287kJ/ mol for TAMWB alloys 289kJ/mol, 327kJ/mol and 345kJ/mol for TAMWY alloy. These two alloys are deformed easily at 760'C.",

author = "Yan Yunqi and Zhou Lian and Luo Guozhen",

year = "2001",

language = "英语",

volume = "30",

pages = "217",

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

issn = "1002-185X",

publisher = "Science Press ",

number = "SUPPL. 1",

}

TY - JOUR

T1 - Dependence of flow stress of 8. 5Nb-TiAl based alloys on strain rate and temperature

AU - Yunqi, Yan

AU - Lian, Zhou

AU - Guozhen, Luo

PY - 2001

Y1 - 2001

N2 - The behavior of high temperature compression deformation for 8. 5Nb-TiAI based alloys was studied in this paper. Ti45Al-8.5Nb-0.2W-0.2Mo-0.05Y (TAMWY) and Ti-45Al-8. 5Nb-0. 2W-0. 2Mo-0. 3B (TAMWB) exhibit the softening state during the compression tests at 760'C-1 OOO'C. The dual logarithm of true stress and true strain for these two alloys is coincided with linear relationship. At above mentioned temperatures, the strain sensitivity m for TAMWY and TAMWB alloy is 0. 06- 0. 09 and 0. 06-0. 08 respectively. The activation energy of high temperature deformation is 243kJ/mol, 279kJ/moI and 287kJ/ mol for TAMWB alloys 289kJ/mol, 327kJ/mol and 345kJ/mol for TAMWY alloy. These two alloys are deformed easily at 760'C.

AB - The behavior of high temperature compression deformation for 8. 5Nb-TiAI based alloys was studied in this paper. Ti45Al-8.5Nb-0.2W-0.2Mo-0.05Y (TAMWY) and Ti-45Al-8. 5Nb-0. 2W-0. 2Mo-0. 3B (TAMWB) exhibit the softening state during the compression tests at 760'C-1 OOO'C. The dual logarithm of true stress and true strain for these two alloys is coincided with linear relationship. At above mentioned temperatures, the strain sensitivity m for TAMWY and TAMWB alloy is 0. 06- 0. 09 and 0. 06-0. 08 respectively. The activation energy of high temperature deformation is 243kJ/mol, 279kJ/moI and 287kJ/ mol for TAMWB alloys 289kJ/mol, 327kJ/mol and 345kJ/mol for TAMWY alloy. These two alloys are deformed easily at 760'C.

UR - https://www.scopus.com/pages/publications/33751364054

M3 - 文章

AN - SCOPUS:33751364054

SN - 1002-185X

VL - 30

SP - 217

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

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

IS - SUPPL. 1

ER -

Dependence of flow stress of 8. 5Nb-TiAl based alloys on strain rate and temperature

Abstract

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