β-Texture Evolution During α Precipitation in the Two-Step Forging Process of a Near-β Titanium Alloy

2020 ◽  
Vol 51 (11) ◽  
pp. 5912-5922
Author(s):  
L. Meng ◽  
T. Kitashima ◽  
T. Tsuchiyama ◽  
M. Watanabe
Keyword(s):  
Titanium Alloy ◽  
Texture Evolution ◽  
Forging Process

Thermal and mechanical induced texture evolution of inertia friction welding in α + β titanium alloy

2020 ◽  
Vol 277 ◽  
pp. 128329 ◽  
Author(s):  
Y.H. Liu ◽  
Z.B. Zhao ◽  
C.B. Zhang ◽  
Q.J. Wang ◽  
H. Sun ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Friction Welding ◽  
Texture Evolution ◽  
Inertia Friction Welding

scholarly journals Texture evolution associated with the preferential recrystallization during annealing process in a hot-rolled near β titanium alloy

2021 ◽  
Vol 12 ◽  
pp. 63-73
Author(s):  
Ruifeng Dong ◽  
Xiaoyang Zhang ◽  
Hongchao Kou ◽  
Ling Yang ◽  
Yuhong Zhao ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Texture Evolution ◽  
Annealing Process ◽  
Hot Rolled

The Effect of Isothermal Forging Process Parameters on the Microstructure and the Properties of TA15 Near α Titanium Alloy

2007 ◽  
Vol 26-28 ◽  
pp. 367-371
Author(s):  
Hong Zhen Guo ◽  
Zhang Long Zhao ◽  
Bin Wang ◽  
Ze Kun Yao ◽  
Ying Ying Liu
Keyword(s):  
Titanium Alloy ◽  
High Temperature ◽  
Tensile Properties ◽  
Process Parameters ◽  
Spherical Shape ◽  
Deformation Degree ◽  
Isothermal Forging ◽  
Forging Process ◽  
Α Phase ◽  
Strip Shape

In this paper the effect of isothermal forging process parameters on the microstructure and the mechanical properties of TA15 titanium alloy was researched. The results of the tests indicate that, in the range of temperature of 850 °C~980 °C and deformation degree of 20%~60%, with the increase of temperature or deformation, as the reinforcement of deformation recrystallization, the primary α-phase tends to the spherical shape and secondary α-phase transforms from the acicular shape to fine and spherical shape with disperse distribution, which enhance the tensile properties at room and high temperature. With the increment of forging times, the spheroidization of primary α-phase aggrandizes and secondary α-phase transforms from spherical and acicular shape to wide strip shape, which decrease the tensile properties at room and high temperature. The preferable isothermal forging process parameters are temperature of 980 °C, deformation degree of 60%, and few forging times.

Application of FEM Modeling to Simulate Metal Flow in Forging a Titanium Alloy Engine Disk

1983 ◽  
Vol 105 (4) ◽  
pp. 251-258 ◽  
Author(s):  
S. I. Oh ◽  
J. J. Park ◽  
S. Kobayashi ◽  
T. Altan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Titanium Alloy ◽  
Metal Flow ◽  
The Finite Element Method ◽  
Fem Modeling ◽  
Forging Process ◽  
Deformation Mechanics ◽  
Effects Of Temperature ◽  
Element Method

The isothermal forging of a titanium alloy engine disk is analyzed by the rigid-viscoplastic finite element method. Deformation mechanics of the forging process are discussed, based on the solution. The effects of temperature and heat conduction on the forging process are also investigated by coupled thermo-viscoplastic analysis. Since the dual microstructure / property titanium disk can be obtained by controlling strain distribution during forging, the process modeling by the finite element method is especially attractive.

scholarly journals Texture evolution of orthorhombic α″ titanium alloy investigated by in situ X-ray diffraction

2017 ◽  
Vol 679 ◽  
pp. 504-510 ◽  
Author(s):  
W. Elmay ◽  
S. Berveiller ◽  
E. Patoor ◽  
T. Gloriant ◽  
F. Prima ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Texture Evolution ◽  
X Ray Diffraction ◽  
X Ray

Computer Simulation on Formation of Precision Forgings of Titanium Alloy and Superalloy

2007 ◽  
Vol 539-543 ◽  
pp. 3130-3135
Author(s):  
R.H. Wu ◽  
K.C. Pang
Keyword(s):  
Titanium Alloy ◽  
Process Design ◽  
Parameter Determination ◽  
Finite Element Models ◽  
Formation Processes ◽  
Forging Process ◽  
Deformation Features ◽  
Parameter Values ◽  
Compressor Disk ◽  
Hot Die Forging

The deformation features are analyzed for titanium alloy and superalloy during isothermal/hot die forging process, and proper finite element models with appropriate parameter values are determined. On the platform of DEFORM software, the formation processes of vane-integrated disk and compressor disk, made of titanium alloy and superalloy respectively, are simulated and analyzed. Based on the simulation results, some important suggestions to the process design and parameter determination are brought forward, which have been taken into consideration or adoption in practice. As a result, the production yield is promoted, and a large amount of expenses of testing and die trial-manufacture are saved.

Characterization and Modeling of Twinning in a Titanium Alloy Ti-6Al-4V

2011 ◽  
Vol 702-703 ◽  
pp. 237-240 ◽  
Author(s):  
Frederik Coghe ◽  
Wim Tirry ◽  
Luc Rabet ◽  
Paul van Houtte
Keyword(s):  
Titanium Alloy ◽  
Strain Rate ◽  
Crystal Plasticity ◽  
Texture Evolution ◽  
Numerical Approach ◽  
Dynamic Data ◽  
Microstructural Investigation ◽  
Self Consistent ◽  
Initial Texture ◽  
Good Agreement

The twinning behavior of a commercial Ti-6Al-4V alloy is studied using a combined experimental and numerical approach. An extensive microstructural investigation was performed to identify and quantify the active twin systems. The mechanical behavior as a function of initial texture and strain rate was then modeled using a visco-plastic self-consistent crystal plasticity code (VPSC7). Earlier obtained quasi-static and dynamic data served to fit the parameters of the model, giving good agreement. However, even if the model gave qualitatively good predictions of the stress-strain curves and the texture evolution for the different loadings, the calculated twin fractions differed considerably of the experimental results.

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