A physically-based constitutive model for hot deformation of Ti-10-2-3 alloy

Bobbili, Ravindranadh; Ramudu, B. Venkata; Madhu, V.

doi:10.1016/j.jallcom.2016.11.208

Cited by 85 publications

(22 citation statements)

References 25 publications

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“…[40,41]. During hot deformation, the slow dynamic recovery (DRV) hardly balances the strain hardening [42,43]. The high deformation storage energy drives the progress of DRX, which is the main dynamic softening mechanism for the studied superalloy [44,45].…”

Section: Hot Deformation Characteristicsmentioning

confidence: 99%

A new dynamic recrystallization kinetics model for a Nb containing Ni-Fe-Cr-base superalloy considering influences of initial δ phase

Wen

Lin

Zhou

2017

Vacuum

117

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Section: Hot Deformation Characteristicsmentioning

confidence: 99%

A new dynamic recrystallization kinetics model for a Nb containing Ni-Fe-Cr-base superalloy considering influences of initial δ phase

Wen

Lin

Zhou

2017

Vacuum

117

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“…Such as Johnson-Cook (JC) model, Split Johnson-Cook (SJC), Bammann-Chiesa-Johnson (BCJ) model and Mechanical Threshold Stress (MTS) model, they have been largely used for successfully modeling of different materials [27][28][29][30]. However, these models involve large number of material constants and properties than empirical models which may not be readily available.…”

Section: Introductionmentioning

confidence: 99%

Study on modified Johnson-Cook constitutive material model to predict the dynamic behavior Mg-1Al-4Y alloy

Wang

Yuan

Jin

et al. 2020

Mater. Res. Express

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An accurate prediction of high speed impact behavior of metals by considering the combined effects of strain, strain rate and temperature is essential for understanding dynamic impact deformation of metals. To understand the effect of strain, strain rate and temperature on the high-speed impact behavior of Mg-1Al-4Y alloy, the dynamic impact compression experiments for Mg-1Al-4Y alloy were carried out by split Hopkinson pressure bar (SHPB). The mechanical properties of Mg-1Al-4Y alloy specimens were studied at different strain rate and temperature. The number of {10-12} extension twins decreases with the strain rate increasing from the electron backscatter diffraction (EBSD) technology, because of the formation of extension twins is suppressed with the strain rate increases, and dislocations become the main mode of dominant deformation. It is also found that the increase of strain rate has a positive effect on the strength of the material. But, the temperatures have a negative impact on the strength of the material. A modified Johnson-cook model has been presented, which shows good predictions with experimental results at different strain rates and temperatures. Especially, the predictions of the Johnson-cook equation are completely consistent with experimental results in small deformation stage.

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“…Because of the low density, marvelous corrosion resistance, and high strengths, titanium alloys are extensively used in some important parts of the aerospace industry, such as aircraft landing gears and compressor discs . Usually, the microstructures and mechanical properties of titanium alloys can be effectively regulated by heat treatments, as well as thermomechanical processing . Especially, the aging heat treatment can prominently affect the content, size, and morphology of α phase, which have greatly influences on the strengths of titanium alloys .…”

Section: Introductionmentioning

confidence: 99%

Precipitation of Secondary Phase and Phase Transformation Behavior of a Solution‐Treated Ti–6Al–4V Alloy during High‐Temperature Aging

et al. 2020

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The precipitation of secondary phase and phase transformation behavior of a solution-treated Ti-6Al-4V alloy during aging heat treatment are investigated. The content, size of the equiaxed α phase, and the thickness of secondary phase are greatly influenced by the aging temperature. With the increased aging temperature, the mean grain size of the equiaxed α phase significantly decreases, whereas the precipitation process of the secondary phase is accelerated. Furthermore, during aging heat treatment, the precipitation and growth of the secondary phase not only destroy the initial lamellar α phase, but also connect with the equiaxed α phase to form a new curved lamellar α phase. In addition, it is found that the α 0 phase is precipitated, and the α 0 !α þ β phase transition occurs with the increased aging temperature.

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A physically-based constitutive model for hot deformation of Ti-10-2-3 alloy

Cited by 85 publications

References 25 publications

A new dynamic recrystallization kinetics model for a Nb containing Ni-Fe-Cr-base superalloy considering influences of initial δ phase

A new dynamic recrystallization kinetics model for a Nb containing Ni-Fe-Cr-base superalloy considering influences of initial δ phase

Study on modified Johnson-Cook constitutive material model to predict the dynamic behavior Mg-1Al-4Y alloy

Precipitation of Secondary Phase and Phase Transformation Behavior of a Solution‐Treated Ti–6Al–4V Alloy during High‐Temperature Aging

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