Abstract
An accurate flow stress model was established by considering the parameters of strain rate, strain and temperature as well as β → α+β phase transformation in order to develop the plastic forming theory of TC18 titanium alloy. Firstly, the phase transition kinetics of TC18 titanium alloy during isothermal and continuous cooling at 1 073 and 1 273 K was studied by thermodynamic calculation, meanwhile, the relationship of volume fraction of phase transition with temperature and time was obtained. Constitutive models were calculated by investigating flow behaviors under hot compression tests with the strain rates of 0.001–1 s−1 and temperatures of 973–1 223 K in the single β and α+β regions in TC18 titanium alloy, respectively. By combining the phase transformation dynamic kinetics with constitutive models, an accurate flow stress model was established, providing theoretical basis and data support for the hot forging of TC18 titanium alloy.
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Bathini U, Srivatsan TS, Patnaik A, et al. A Study of the Tensile Deformation and Fracture Behavior of Commercially Pure Titanium and Titanium Alloy: Influence of Orientation and Microstructure[J]. Journal of Materials Engineering and Performance, 2010, 19: 1 172–1 182
Yu Y, Xiong BQ, Hui SX, et al. Hot Deformation Behavior and Globularization Mechanism of Ti-6Al-4V-0.1B Alloy with Lamellar Microstructure[J]. Rare Metals, 2013, 32: 122–128
Mao XN, Zhang PX, Yu LL, et al. Relationship Study between the Component Design and Quenching Degree for BT22 Alloy[J]. Rare Metal Letter, 2006, 25: 21
Chuan W, Liang H. Hot deformation and Dynamic Recrystallization of a Near-beta Titanium Alloy in the β Single Phase Region[J]. Vacuum, 2018, 156: 384–401
Yang Y, Li TR, Jia T, et al. Dynamic Recrystallization and Flow Behavior in Low Carbon Nb-Ti Microalloyed Steel[J]. Steel Research International, 2018, 89: 1700395
Jonhson GR, Cook WH. A Constitutive Model and Data for Metal Subjected to Large Strains, High Strain Rates and High Temperature[C]. In: Proceedings of the Seventh International Symposium on Ballistic, Hague, The Netherlands, 1983: 19–21
Fields D, Backofen W. Determination of Strain Hardening Characteristics by Torsion Testing[C]. Proc. ASTM, 1957, 57: 1259–1272.
Ying L, Dai MH, Hu P, et al. Thermal Constitutive Model and Numerical Simulation of Hot Forming for 6061-T6 Aluminum Alloy[J]. The Chinese Journal of Nonferrous Metals, 2015, 25: 1 815–1 821
Ugodilinwa NE, Khoshdarregi M, Ojo OA. Analysis and Constitutive Modeling of High Strain Rate Deformation Behavior of Haynes 282 Aerospace Superalloy[J]. Materials Today Communications, 2019, 20: 100545
Jia BH, Song WD, Tang HP, et al. Hot Deformation Behavior and Constitutive Model of TC18 Alloy during Compression[J]. Rare Metals, 2014, 33: 383–389
Lin YC, Chen MS, Zhong J. Prediction of 42CrMo Steel Flow Stress at High Temperature and Strain Rate[J]. Mechanics Research Communications, 2008, 35: 142–150
Zerilli FJ, Armstrong RW. Dislocation-mechanics-based Constitutive Relations for Material Dynamics Calculations[J]. Journal of Applied Physics, 1987, 61: 1 816–1 825
Voyiadjis GZ, Almasri AH. A Physically Based Constitutive Model for Fcc Metals with Applications to Dynamic Hardness[J]. Mechanics of Materials, 2008, 40: 549–563
Lin YC, Chen XM. A Critical Review of Experimental Results and Constitutive Descriptions for Metals and Alloys in Hot Working[J]. Materials & Design, 2011, 32: 1 733–1 759
Semiatin S, Seetharaman V, Weiss I. Flow Behavior and Globularization Kinetics during Hot Working of Ti-6Al-4V with a Colony Alpha Microstructure[J]. Materials Science and Engineering: A, 1999, 263: 257–271
Lei LM, Huang X, Huang LJ, et al. Hot Deformation Behavior and Constitutive Relationship of As-cast TB6 Alloy[J]. The Chinese Journal of Nonferrous Metals, 2010, 20: 377
Lin YC, Huang J, Li HB, et al. Phase Transformation and Constitutive Models of a Hot Compressed TC18 Titanium Alloy in the α+β Regime[J]. Vacuum, 2018, 157: 83–91
Wang JJ, Guo HZ, Liang HQ, et al. Study of TC18 Titanium Alloy Forging Process Parameters Based on BP Neural Network[J]. Hot Working Technology, 2014, 43: 1–6
Huang DR, Wang M, Guo HZ, et al. Analysis on Flow Characteristics during High Temperature Deformation of TC18 Titanium Alloy Based Dislocation Evolution[J]. Hot Working Technology, 2018, 49–52
Qu FS, Zhou J, Liu XG, et al. Constitutive Equation and Processing Map of Thermal Deformation for TC18 Titanium Alloy[J]. Rare Metal Materials and Engineering, 2014, 43: 120–124
Maffezzoli A, Kenny J, Torre L. On the Physical Dimensions of the Avrami Constant[J]. Thermochimica Acta, 1995, 269–270: 185–190
Malinov S, Markovsky P, Sha W, et al. Resistivity Study and Computer Modelling of the Isothermal Transformation Kinetics of Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo-0.08Si Alloys[J]. Journal of Alloys and Compounds, 2001, 314: 181–192
Ning YQ, Luo X, Liang HQ, et al. Competition between Dynamic Recovery and Recrystallization During Hot Deformation for TC18 Titanium Alloy[J]. Materials Science and Engineering: A, 2015, 635: 77–85
Sun ZC, Yang H, Han GJ, et al. A Numerical Model Based on internal-state-variable Method for the Microstructure Evolution during Hot-working Process of TA15 Titanium Alloy[J]. Materials Science and Engineering: A, 2010, 527: 3 464–3 471
Sellars CM, Mctegart WJ. On Mechanism of Hot Deformation[J]. Acta Metallurgica, 1966, 14: 1 136–1 138
Zener C, Hollomon JH. Effect of Strain Rate Upon Plastic Flow of Steel[J]. Journal of Applied Physics, 1944, 15: 22–32
Liang HQ, Guo HZ, Ning YQ, et al. Analysis on the Constitutive Relationship of TC18 Titanium Alloy Based on the Softening Mechanism[J]. Acta Metallurgica Sinica, 2014, 50: 871–878
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Funded by the National Natural Science Foundation of China (No.52075058), the Natural Science Foundation of Chongqing(No. cstc2021jcyj-msxmX1112) and the Research and Demonstration of Key Technologies for Forging High-performance Aluminum Alloys for Aerospace Applications (No. Z20210348)
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Sun, T., Teng, H., Jiang, X. et al. Flow Characteristics Analysis of TC18 Titanium Alloy during Hot Deformation Based on Phase Transformation. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 38, 1418–1425 (2023). https://doi.org/10.1007/s11595-023-2837-7
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DOI: https://doi.org/10.1007/s11595-023-2837-7