Identification for the Optimal Working Parameters of Ti-6Al-4V-0.1Ru Alloy in a Wide Deformation Condition Range by Processing Maps Based on DMM

Xia, Yu-feng; Long, Si Yuan; Zhou, Yuting; Zhao, Jia; Wang, Tianyu; Zhou, Jie

doi:10.1590/1980-5373-mr-2016-0448

Cited by 29 publications

(7 citation statements)

References 28 publications

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“…The Ti-64 ELI 79 in both the α + β phase field and β-phase-field (temperature range of 750–1100 °C) at a lower strain rate ( ε ˙ < 0.01 .1em normals − 1) reported the steady-state behaviour (Supplementary Figure 14). Similar features of steady-state behaviour for Ti–6Al–4V–0.1Ru 68 alloy were revealed at the strain rate of 0.01 and 0.1 s −1 at a higher temperature, that is, in the β-phase-field (Supplementary Figure 18(a) and (b)).…”

Section: Experimental Procedures For Physical Simulationsupporting

confidence: 71%

“…two-phase) in a strain rate range of 0.01 to 10 s −1 . 68 However, some two-phase α + β Ti alloys, such as TC21, 69 show the continuous yielding phenomena in the temperature range 1000-1050 °C at a strain rate less than 0.1 s −1 (Supplementary Figure 16). This continuous yielding phenomenon occurs when strain reaches a certain value of the flow stress, which is also a peak value and dramatic drop due to the generation of mobile dislocation from the grain boundary.…”

Section: Flow Behaviour Of (α + β) Titanium Alloysmentioning

confidence: 99%

“…In the (α + β) phase field, softening value reaches the maximum at 963 K (790 °C) and decreases with an increase in temperature. The flow nature of Ti-5Al-5Mo-3Cr-1Zr alloy (near-β alloy) Properties Application as-Cold-rolled Ti-6Al-4V-0.1Ru 68 High corrosion resistance, excellent mechanical properties and low density Chemical processing industries as-cast TC21 Ti-6A1-2Zr-2Sn-3Mo-1Cr-2Nb 37,69 Specific strength and fracture toughness superior Aircraft applications Ti-6Al-4V 70,71 Excellent mechanical properties as well as good corrosion resistance…”

Section: Flow Behaviour Of Beta-titanium Alloysmentioning

confidence: 99%

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Hot deformation behaviour of Ti alloys: A review on physical simulation and deformation mechanisms

Yadav

Saxena

Sehgal³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Titanium and its alloys, owing to their properties like high strength, toughness, corrosion resistance and thermal stability, are employable in various engineering and medical applications. The properties of titanium alloys depend upon the processing routes and their final microstructure. Therefore, the present review paper compiles the deformation behaviour of various alloys during hot deformation using a physical simulation. Subsequently, the flow stresses are analysed and utilized to develop the processing maps and the constitutive equations that are advantageous for predicting deformation mechanisms during the hot deformation. Specific features reported in the flow stress curves include work hardening, flow softening and steady-state behaviour. In certain cases, the yield point drop and oscillatory behaviour or serrations are also observed. Softening and oscillatory behaviour is an indicator of either dynamic recrystallization or flow-instability, whereas yield discontinuity signifies locking and unlocking of dislocations. In the processing maps, high power dissipation efficiency, η, reveals safe processing conditions, and the η value higher than 40% demonstrates dynamic recrystallization or globularization in the deformed microstructure, whereas the instability domain expresses shear band, flow localization, void formation and wedge cracks in the deformed microstructure. Amongst all the constitutive equations, the Arrhenius-type hyperbolic sine equation is the most suitable for Ti alloys for calculating flow stress and predicting dominant deformation mechanism using activation energy Q and stress exponent n.

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Section: Experimental Procedures For Physical Simulationsupporting

confidence: 71%

Section: Flow Behaviour Of (α + β) Titanium Alloysmentioning

confidence: 99%

Section: Flow Behaviour Of Beta-titanium Alloysmentioning

confidence: 99%

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Hot deformation behaviour of Ti alloys: A review on physical simulation and deformation mechanisms

Yadav

Saxena

Sehgal³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Prasad et al [18] proposed processing maps, which are widely utilized for adjusting processing factors and governing microstructure during thermomechanical treatment. Based on dynamic materials model (DMM), in which the workpiece works as a dissipater of power, the processing maps can be constructed [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Superplastic deformation behavior of ultra-fine-grained Ti-1V-4Al-3Mo alloy: constitutive modeling and processing map

Mosleh

Mikhaylovskaya

Котов

et al. 2019

Mater. Res. Express

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This paper studies the superplasticity of conventional sheets of Ti-1V-4Al-3Mo (α+β) alloy. The flow behavior was investigated in a temperature range of 775 °C-900 °C and a constant strain rate range of 2×10 −4-5×10 −3 s −1 via uniaxial tensile tests. The microstructure evolution during the superplastic deformation was analyzed. The results revealed that, the flow behavior of Ti-1V-4Al-3Mo (α+β) alloy is characterized by strain softening phenomena. The experimental stress-strain data were used to build a power law constitutive model. A processing map, which shows the safe and unsafe regions of deformation, was also constructed for the studied alloy. The optimal deformation regime was attained at a temperature of 875 °C and strain rate of 1×10 −3 s −1 which provided a β phase fraction of 52%. Equiaxed fine-grained α and β structure with size of 2-3 μm as well as dislocation activity inside the α-grains were identified in the optimum deformation regime.

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“…To calculate the value of m, a third order polynomial function can be used to fit the relationship of log ε and logσ as following [30][31][32] :…”

Section: Processing Mapmentioning

confidence: 99%

Hot Deformation Behavior and Microstructure Evolution of 2219/TiB2 Al-matrix Composite

Wang

Qiang

2020

Mat. Res.

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Hot compression tests for 2219/TiB 2 Al-matrix composite were conducted on a Gleeble-3500 isothermal simulator in the temperature range of 300~500°C and strain rates of 0.01, 0.1, 1, 10s -1 to obtain true stress strain curves. The original Johnson-Cook model was calculated and used to describe the constitutive relationship of hot deformation behavior of this composite. After precision evaluation and analysis, a new modified Johnson-Cook model was proposed. Comparing with the original model, the new model has a lower absolute average relative error (AARE) of 6.4415% and a higher relative error (R) of 0.9852, which indicates better prediction precision. Meanwhile, to understand the intrinsic workability of this composite, processing map based on dynamic materials model was constructed. Two stable regions locating at 300~400°C&0.01~0.1s -1 and 420~500°C &0.01~1s -1 were identified by the processing map and the instable microstructure in the instability region validated the reliability of the processing map. Furthermore, the microstructure evolution was analyzed and the results revealed that the θ-phase reduced with the increasing temperature.

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Identification for the Optimal Working Parameters of Ti-6Al-4V-0.1Ru Alloy in a Wide Deformation Condition Range by Processing Maps Based on DMM

Cited by 29 publications

References 28 publications

Hot deformation behaviour of Ti alloys: A review on physical simulation and deformation mechanisms

Hot deformation behaviour of Ti alloys: A review on physical simulation and deformation mechanisms

Superplastic deformation behavior of ultra-fine-grained Ti-1V-4Al-3Mo alloy: constitutive modeling and processing map

Hot Deformation Behavior and Microstructure Evolution of 2219/TiB2 Al-matrix Composite

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