Effect of initial grain size on the hot deformation behavior of 47Zr–45Ti–5Al–3V alloy

Tan, Yuanbiao; Liu, Yang; Duan, Jingli; Liu, W.C.; Zhang, J.W.; Liu, R.P.

doi:10.1016/j.jnucmat.2014.08.035

Cited by 19 publications

(10 citation statements)

References 39 publications

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“…Barnett et al [16,17] found that the peak stress was higher in Mg-3Al-1Zn alloys with coarse grain size than in that with fine grain size. Similar results were also observed in 7075 aluminum alloy [18] and 47Zr-45Ti-5Al-3V alloy [19]. Above all, the initial grain size presents different effects on the flow behavior of the metal materials owing to the difference in chemical compositions.…”

Section: Introductionsupporting

confidence: 80%

“…It is an effective way to calculate the values of the kinetic parameters in this equation by a given value of α. The detailed calculation method has been introduced in Reference [19]. In this present work, the calculated values of α, A, n, and Q are 0.015, 1.30 × 10 8 s −1 , 3.20, and 234.7 kJ/mol for the TB8 titanium alloy with fine grain structure and 0.015, 2.20 × 10 8 s −1 , 3.16, and 245.6 kJ/mol for the TB8 titanium alloy with coarse grain structure, respectively.…”

Section: Constitutive Equations Analysis Of Tb8 Titanium Alloysmentioning

confidence: 99%

“…For the samples containing a bimodal starting microstructure, an equiaxed grain microstructure was mainly presented at the condition of lower strain rates. In addition, the initial grain size of the β phase also has a distinct effect on the hot deformation behavior of metal materials [13][14][15][16][17][18][19]. Wahabi et al [13] reported that dynamic recrystallization of the austenitic stainless steels with small initial grain sizes more easily occurred than that of coarse initial grain sizes at the same deformation condition.…”

Section: Introductionmentioning

confidence: 99%

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Initial β Grain Size Effect on High-Temperature Flow Behavior of Tb8 Titanium Alloys in Single β Phase Field

Yang

Tan

et al. 2019

Metals

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The high-temperature flow behavior of TB8 titanium alloys with two different grain sizes was investigated in this present work. Results show that a significant characteristic of stress drop is visible at the start stage of the hot deformation process when the strain rates are 100 and 10−1 s−1. With the further increasing of strain, the flow stress initially rises to a maximum value and subsequently attains a plateau for the strain rates of 100 s−1 and a slight decrease for the strain rates of 10−1 s−1. Only dynamic recovery occurs under these deformation conditions. When the strain rates drop to 10−3 s−1, the dynamic recrystallization takes place during hot deformation. The values of deformation activation energy and materials constants at different strains were calculated. The processing maps at different strains were established for the fine- and coarse-grained alloys. The optimal processing parameter for hot processing was attained to be 900 °C/10−3 s−1 for fine-grained alloys and 950 °C/10−3 s−1 for coarse-grained alloys, respectively.

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Section: Introductionsupporting

confidence: 80%

Section: Constitutive Equations Analysis Of Tb8 Titanium Alloysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Initial β Grain Size Effect on High-Temperature Flow Behavior of Tb8 Titanium Alloys in Single β Phase Field

Yang

Tan

et al. 2019

Metals

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“…Therefore, the effect of grain size on the flow stress was very complex and its influence varied with processing parameters such as deformation temperature, strain, and strain rate for different materials. Nowadays, a number of studies were conducted to recognize the alpha grain size effect on flow stress for many materials such as pure aluminum [13], 7075 aluminum alloy [14], AZ91 magnesium alloy [15], 47Zr-45Ti-5Al-3V alloy [16], stainless steel [17]. The objective of present research is to analyze the effect of alpha grain size on the flow stress of equiaxed Ti6Al-4V alloy at different processing parameters, and detailed explanation is given with the help of the microstructure observation and quantitative analysis.…”

Section: Introductionmentioning

confidence: 99%

Effect of the alpha grain size on the deformation behavior during isothermal compression of Ti–6Al–4V alloy

Luo

et al. 2015

Materials & Design

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“…With the rapid development of the aviation industry, the increasing requirement in the mechanical properties was needed for the structural materials of the aerospace field. Recently, a series of new ZrTiAlV alloys with an ultrahigh strength were designed [ 4 , 5 , 6 , 7 , 8 , 9 ]. The mechanical properties of key components were depended on the microstructure produced during hot-working of the ZrTiAlV alloys, which was effected by hot processing parameters.…”

Section: Introductionmentioning

confidence: 99%

Study on the Dynamic Recrystallization Behavior of 47Zr-45Ti-5Al-3V Alloy by CA–FE Simulation

et al. 2021

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The dynamic recrystallization (DRX) behavior of 47Zr-45Ti-5Al-3V alloy was studied by using the experiment and numerical simulation method based on DEFORM-3D software and cellular automata (CA) over a range of deformation temperatures (850 to 1050 °C) and strain rates (10−3 to 100 s−1). The results reveal that the DRX behavior of 47Zr-45Ti-5Al-3V alloy strongly depends on hot-working parameters. With rising deformation temperature (T) and decreasing strain rate (ε˙), the grain size (dDRX) and volume fraction (XDRX) of DRX dramatically boost. The kinetics models of the dDRX and XDRX of DRX grains were established. According to the developed kinetics models for DRX of 47Zr-45Ti-5Al-3V alloy, the distributions of the dDRX and XDRX for DRX grains were predicted by DEFORM-3D. DRX microstructure evolution is simulated by CA. The correlation of the kinetics model is verified by comparing the dDRX and XDRX between the experimental and finite element simulation (FEM) results. The nucleation and growth of dynamic recrystallization grains in 47Zr-45Ti-5Al-3V alloy during hot-working can be simulated accurately by CA simulation, comparing with FEM.

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Effect of initial grain size on the hot deformation behavior of 47Zr–45Ti–5Al–3V alloy

Cited by 19 publications

References 39 publications

Initial β Grain Size Effect on High-Temperature Flow Behavior of Tb8 Titanium Alloys in Single β Phase Field

Initial β Grain Size Effect on High-Temperature Flow Behavior of Tb8 Titanium Alloys in Single β Phase Field

Effect of the alpha grain size on the deformation behavior during isothermal compression of Ti–6Al–4V alloy

Study on the Dynamic Recrystallization Behavior of 47Zr-45Ti-5Al-3V Alloy by CA–FE Simulation

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