![](/images/graphics-bg.png)
Constitutive Relationship for Hot Deformation of TB18 Titanium Alloy
Joint Authors
Fu, Qiang
Yuan, Wuhua
Xiang, Wei
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-17
Country of Publication
Egypt
No. of Pages
14
Abstract EN
In the present work, the hot deformation behavior of TB18 titanium alloy was investigated by isothermal hot compression tests with temperatures from 650 to 880°C and strain rates from 0.001 to 10 s−1.
The flow curves after friction and temperature correction show that the peak stress decreased with the temperature increase and the strain rate decrease.
Three typical characteristics of flow behavior indicate the dynamic softening behavior during hot deformation.
At a strain rate of 0.001∼0.01 s−1, the flow stress continues to decrease as the strain rate increases after the flow stress reaches the peak stress; the flow softening mechanism is dynamic recovery and dynamic recrystallization at a lower temperature and dynamic recrystallization at a higher temperature.
The discontinuous yielding phenomenon could be seen at a strain rate of 1 s−1, dynamic recrystallization took place in the β single-phase zone, and flow localization bands were observed in the α + β two-phase zone.
At a higher strain rate of 10 s−1, the flow instabilities were referred to as the occurrence of flow localization by adiabatic heat.
Constitutive equation considering the compensation of strain was also established, and the results show high accuracy to predict the flow stress with the correlation coefficient of 99.2% and the AARE of 6.1%, respectively.
American Psychological Association (APA)
Fu, Qiang& Yuan, Wuhua& Xiang, Wei. 2020. Constitutive Relationship for Hot Deformation of TB18 Titanium Alloy. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1128672
Modern Language Association (MLA)
Fu, Qiang…[et al.]. Constitutive Relationship for Hot Deformation of TB18 Titanium Alloy. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1128672
American Medical Association (AMA)
Fu, Qiang& Yuan, Wuhua& Xiang, Wei. Constitutive Relationship for Hot Deformation of TB18 Titanium Alloy. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1128672
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1128672