Study on high-temperature deformation mechanical behavior and dynamic recrystallization kinetics model of Ti-47.5Al-2.5V-1.0Cr-0.2Zr alloy

The high-temperature deformation behavior of Q345 steel is detected by a Gleeble-3800 thermal simulator. The Arrhenius constitutive equation for high-temperature flow stress and the dynamic recrystallization model are constructed. With the secondary development technology, customized modifications are made on existing Deform-3D software. The constructed constitutive model and dynamic recrystallization model are embedded into Deform-3D to realize the secondary development of Deform-3D. The grain size and volume percentage distribution of dynamic recrystallization are obtained by simulating the shear connection process at high temperature and high speed. The results show that the constitutive equation and the dynamic recrystallization model constructed in this paper can be used to predict the evolution of the microstructure. The difference between the prediction results and the experimental data is about 3%. The accuracy of Arrhenius constitutive equation, dynamic recrystallization model and the feasibility of software secondary development are verified.

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Dynamic Recrystallization in Sintered Cobalt during High-Temperature Deformation

Metallurgical and Materials Transactions A ◽

10.1007/s11661-010-0181-y ◽

2010 ◽

Vol 41 (6) ◽

pp. 1474-1482 ◽

Cited By ~ 21

Author(s):

B. Paul ◽

A. Sarkar ◽

J.K. Chakravartty ◽

A. Verma ◽

R. Kapoor ◽

...

Keyword(s):

High Temperature ◽

Dynamic Recrystallization ◽

High Temperature Deformation ◽

Temperature Deformation

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Dynamic Recrystallization at Triple Junction during High-Temperature Deformation in Copper Tricrystal

Materials Science Forum ◽

10.4028/www.scientific.net/msf.408-412.761 ◽

2002 ◽

Vol 408-412 ◽

pp. 761-766 ◽

Cited By ~ 3

Author(s):

Sutandyo Andiarwanto ◽

Hiromi Miura ◽

Taku Sakai

Keyword(s):

High Temperature ◽

Dynamic Recrystallization ◽

Triple Junction ◽

High Temperature Deformation ◽

Temperature Deformation

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Microstructural development and mechanical behavior of eutectic bismuth-tin and eutectic indium-tin in response to high temperature deformation

10.2172/10115053 ◽

1993 ◽

Author(s):

Julia Lauren Freer Goldstein

Keyword(s):

High Temperature ◽

Mechanical Behavior ◽

High Temperature Deformation ◽

Temperature Deformation ◽

Microstructural Development

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The role of interphase boundary phenomena on mechanical behavior during high-temperature deformation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100087288 ◽

1991 ◽

Vol 49 ◽

pp. 594-595

Author(s):

B. Hidalgo-Prada

Keyword(s):

High Temperature ◽

Mechanical Behavior ◽

Interphase Boundary ◽

High Temperature Deformation ◽

Temperature Deformation ◽

Metallographic Analysis ◽

Two Phase ◽

Transmission Electron ◽

Phase Size

The influence of interphase boundary on the mechanical behavior of a two-phase (α/β) Ni-Modified Ti-6A1-4V alloy during superplastic deformation (SPD), has been investigated in the range of temperature and strain rate where maximum ductility is - attained.Uniaxial tests for constant and differential strain rates were performed over the - range of 5.0 x 10-5 s-1 to 5.0 x 10-3 s-1 and at temperature from 1023 to 1123 K. To optimize the initial microstructure, tensile specimens were static annealed in argon for 1 hour at 815 °C ( SA-1-815).Upon completion of the tests, specimens were quenched in pre-chilled argon to pre—serve the high temperature microstructure for metallographic analysis. The gage portion of the specimen was polished and etched in a solution of 2 ml HF, 3 ml HNO3 and 95 ml H2O. Subsequently, they were subjected to scanning and transmission electron - microscopy (SEM and TEM) examination. A Quantimet Image Analizer was used for determining the phase size, its distribution and volume fractions.

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