Hot deformation behavior and flow stress modeling of Ti–6Al–4V alloy produced via electron beam melting additive manufacturing technology in single β-phase field

2020 ◽  
Vol 792 ◽  
pp. 139822 ◽  
Author(s):  
Abdollah Saboori ◽  
Ata Abdi ◽  
Seyed Ali Fatemi ◽  
Giulio Marchese ◽  
Sara Biamino ◽  
...  
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Flow Stress ◽  
Phase Field ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Electron Beam Melting ◽  
Hot Deformation Behavior ◽  
Additive Manufacturing Technology ◽  
Β Phase

Hot deformation behavior of ZrTiAlV alloy with a coarse grain structure in the β phase field

2013 ◽  
Vol 577 ◽  
pp. 218-224 ◽  
Author(s):  
Y.B. Tan ◽  
L.H. Yang ◽  
C. Tian ◽  
R.P. Liu ◽  
X.Y. Zhang ◽  
...  
Keyword(s):  
Phase Field ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Grain Structure ◽  
Coarse Grain ◽  
Hot Deformation Behavior ◽  
Β Phase

Hot Deformation Behavior and Microstructure Evolution of Ti-6.5Al-1.5Zr-3.5Mo-0.3Si with an Equiaxed α+β Starting Structure

2007 ◽  
Vol 546-549 ◽  
pp. 1383-1388 ◽  
Author(s):  
Hui Qin Chen ◽  
Hao Zhuan Lin ◽  
L. Guo ◽  
Chun Xiao Cao
Keyword(s):  
Activation Energy ◽  
Apparent Activation Energy ◽  
Phase Field ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Hot Deformation Behavior ◽  
Temperature Range ◽  
Self Diffusion ◽  
Β Phase ◽  
Plastic Deformation Behavior

The hot deformation behavior of TC11 with an equiaxed α+β pre-form microstructure was investigated by hot compression tests in the temperature range 800°C–1090°C and strain rate range 1×10-310s-1. Several approaches have been used in this investigation, which include analysis of shapes of stress–strain curves, kinetic analysis and microstructure observation. The experimented results showed that, (1) In the β phase field, the alloy exhibits dynamic re-crystallization. The apparent activation energy in this domain is estimated to be 183kJ/ mol, which is close to that for self-diffusion in β. The re-crystallized grain size may be governed by competing of diffusion and dynamic re-crystallization rate at deforming conditions. (2) In the α+β phase field, the alloy exhibits super-plastic deformation behavior at 0.001-0.01s-1 and 980°C -850°C, and the apparent activation energy estimated in this domain is about 600 kJ/mol, which is much higher than that for self-diffusion in α-titanium due to β volume fraction is not constant over the test temperature range.

Hot deformation behavior of Ti–20Zr–6.5Al–4V alloy in the α+β and single β phase field

2014 ◽  
Vol 609 ◽  
pp. 226-234 ◽  
Author(s):  
Y.B. Tan ◽  
J.L. Duan ◽  
L.H. Yang ◽  
W.C. Liu ◽  
J.W. Zhang ◽  
...  
Keyword(s):  
Phase Field ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Hot Deformation Behavior ◽  
Β Phase

scholarly journals Hot deformation behavior of 51.1Zr–40.2Ti–4.5Al–4.2V alloy in the single β phase field

2015 ◽  
Vol 25 (1) ◽  
pp. 34-41 ◽  
Author(s):  
Jingli Duan ◽  
Yuanbiao Tan ◽  
Liyuan Ji ◽  
Wenchang Liu ◽  
Jingwu Zhang ◽  
...  
Keyword(s):  
Phase Field ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Hot Deformation Behavior ◽  
Β Phase

scholarly journals Hot Deformation Behavior of a New Al–Mn–Sc Alloy

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 22
Author(s):  
Weiqi Kang ◽  
Yi Yang ◽  
Sheng Cao ◽  
Lei Li ◽  
Shewei Xin ◽  
...  
Keyword(s):  
Flow Stress ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Material Model ◽  
Strain Rates ◽  
Hot Workability ◽  
Hot Deformation Behavior ◽  
Hollomon Parameter ◽  
Dynamic Material Model ◽  
Optimal Processing

The hot deformation behavior of a new Al–Mn–Sc alloy was investigated by hot compression conducted at temperatures from 330 to 490 °C and strain rates from 0.01 to 10 s−1. The hot deformation behavior and microstructure of the alloy were significantly affected by the deformation temperatures and strain rates. The peak flow stress decreased with increasing deformation temperatures and decreasing strain rates. According to the hot deformation behavior, the constitutive equation was established to describe the steady flow stress, and a hot processing map at 0.4 strain was obtained based on the dynamic material model and the Prasad instability standard, which can be used to evaluate the hot workability of the alloy. The developed hot processing diagram showed that the instability was more likely to occur in the higher Zener–Hollomon parameter region, and the optimal processing range was determined as 420–475 °C and 0.01–0.022 s−1, in which a stable flow and a higher power dissipation were achieved.

Study on hot deformation behavior of carbon structural steel with flow stress

2012 ◽  
Vol 539 ◽  
pp. 294-300 ◽  
Author(s):  
Jian Wang ◽  
Hong Xiao ◽  
Hongbiao Xie ◽  
Xiumei Xu ◽  
Yanan Gao
Keyword(s):  
Flow Stress ◽  
Structural Steel ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Hot Deformation Behavior ◽  
Carbon Structural Steel
Sign in / Sign up

Export Citation Format

Share Document