Characteristic and mechanism of dynamic recrystallization in a newly developed Fe-Cr-Ni-Al-Nb superalloy during hot deformation

Luo, Rui; Chen, Leli; Zhang, Yuanxiang; Cao, Yu; Peng, Ching-Tun; Yang, Yuyan; Liu, Tian; Zheng, Qiwen; Cheng, Xiaonong

doi:10.1016/j.jallcom.2021.158601

Cited by 36 publications

(12 citation statements)

References 53 publications

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“…The aforementioned method obtained the dynamic recovery stress under different experimental conditions, and the DRX volume fraction under the experimental conditions was calculated according to Equation (13). The prediction model of DRX volume fraction under different deformation conditions based on the Avrami DRX kinetic model can be expressed as [ 40,41 ]

X_{DRX} = 1 - exp (- b {(\frac{ε - ε_{normalc}}{ε_{normalp}})}^{k})

…”

Section: Resultsmentioning

confidence: 99%

Dynamic Recrystallization Behavior Under Inhomogeneous Thermomechanical Deformation State

Peng

Liang

Liu

et al. 2022

steel research int.

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X_{DRX} = 1 - exp (- b {(\frac{ε - ε_{normalc}}{ε_{normalp}})}^{k})

…”

Section: Resultsmentioning

confidence: 99%

Dynamic Recrystallization Behavior Under Inhomogeneous Thermomechanical Deformation State

Peng

Liang

Liu

et al. 2022

steel research int.

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“…The flow behaviors of the B07 [ 99 ] and GH5188 [ 100 ] superalloys at elevated temperatures and a strain rate of 0.1 s −1 are shown in Figure 2 a and Figure 2 b, respectively. As can be seen, the flow stress is extremely sensitive to temperature and passes the three regions that are defined in Figure 1 .…”

Section: Flow Stress Behaviormentioning

confidence: 99%

On the Prediction of the Flow Behavior of Metals and Alloys at a Wide Range of Temperatures and Strain Rates Using Johnson–Cook and Modified Johnson–Cook-Based Models: A Review

et al. 2023

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This paper reviews the flow behavior and mathematical modeling of various metals and alloys at a wide range of temperatures and strain rates. Furthermore, it discusses the effects of strain rate and temperature on flow behavior. Johnson–Cook is a strong phenomenological model that has been used extensively for predictions of the flow behaviors of metals and alloys. It has been implemented in finite element software packages to optimize strain, strain rate, and temperature as well as to simulate real behaviors in severe conditions. Thus, this work will discuss and critically review the well-proven Johnson–Cook and modified Johnson–Cook-based models. The latest model modifications, along with their strengths and limitations, are introduced and compared. The coupling effect between flow parameters is also presented and discussed. The various methods and techniques used for the determination of model constants are highlighted and discussed. Finally, future research directions for the mathematical modeling of flow behavior are provided.

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“…This is also called TDRX. [23,53] Figure 17e shows a schematic diagram of twins promoting DRX. First, the twin boundary in the original grain appears the alternating interface of HAGB and twin boundary under the stress driven.…”

Section: Subdivision Of Drx Mechanism In the Transition Zonementioning

confidence: 99%

“…The mechanism of twinning promoting DRX nucleation is called the twin dynamic recrystallization mechanism (TDRX). [ 23 ]…”

Section: Introductionmentioning

confidence: 99%

“…The mechanism of twinning promoting DRX nucleation is called the twin dynamic recrystallization mechanism (TDRX). [23] It is worth noting that a transition zone of the DRX mechanism will appear in the process of hot deformation. For instance, Belyakov et al [24] reported the relationship between grain size and flow stress in titanium alloy, it was found that there were three intervals in the fitting slope between flow stress and grain size, corresponding to the transformation of different DRX mechanisms.…”

Section: Introductionmentioning

confidence: 99%

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Subdivision of Dynamic Recrystallization Mechanism in the Transition Zone and Microstructure Evolution of Incoloy825 Alloy

et al. 2022

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Characteristic and mechanism of dynamic recrystallization in a newly developed Fe-Cr-Ni-Al-Nb superalloy during hot deformation

Cited by 36 publications

References 53 publications

Dynamic Recrystallization Behavior Under Inhomogeneous Thermomechanical Deformation State

Dynamic Recrystallization Behavior Under Inhomogeneous Thermomechanical Deformation State

On the Prediction of the Flow Behavior of Metals and Alloys at a Wide Range of Temperatures and Strain Rates Using Johnson–Cook and Modified Johnson–Cook-Based Models: A Review

Subdivision of Dynamic Recrystallization Mechanism in the Transition Zone and Microstructure Evolution of Incoloy825 Alloy

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