Microstructure evolution, hot deformation behaviour and processing map of Inconel X-750 superalloy in sub-solvus and super-solvus temperature ranges

Mahmoudi, M.; Aboutalebi, M.R.; Salehi, M.T.; Moshaver, H.; Ebrahimi, G.R.; Vafaeenezhad, H.

doi:10.1016/j.jmrt.2023.08.269

Cited by 4 publications

(4 citation statements)

References 32 publications

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“…As a result, the work hardening caused by dislocation generation and tangle cannot be entirely offset, causing the curve to rise. It then gradually stabilized until the end of the test, which implied a balance between work hardening and dynamic softening [21][22][23]. The flow stress values became larger as the strain rate increased from 0.01 s −1 to 10 s −1 .…”

Section: Flow Stress-strain Behaviormentioning

confidence: 94%

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Hot Deformation Behavior and Processing Maps of 26CrMo7S Steel Used in Oil Exploration

Jiang,

Li,

Huang

et al. 2023

Materials

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The hot deformation behavior and flow stress characteristics of experimental 26CrMo7S steel were analyzed using a thermal simulator under a range of conditions, including a strain rate range of 0.01~10 s−1, a temperature range of 850~1250 °C, and a maximum deformation amount of 70%. The Arrhenius constitutive model was built for the corresponding conditions, and the model’s accuracy was verified through error analysis. Additionally, hot processing maps were constructed to analyze the processing zone of the steel under different hot deformation conditions. Finally, the microstructure of the processing zones was observed and verified using the electron backscattered diffraction (EBSD). The results indicate that the interaction of work hardening and dynamic softening influences the hot deformation behavior of 26CrMo7S steel. The Arrhenius constitutive equation with a value of the correlation coefficient (r = 0.99523) accurately predicts the flow behavior of 26CrMo7S steel under different strains. The optimal processing zone obtained with the hot processing maps is within a deformation range of 1010~1190 °C and a strain rate range of 0.01~10−1.5 s−1, and the obtained microstructure is in good agreement with the analysis results.

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Section: Flow Stress-strain Behaviormentioning

confidence: 94%

“…ε. The power dissipation factor η, the dimensionless parameter, can be expressed with Equation (23).…”

Section: 𝜂 =mentioning

confidence: 99%

Hot Deformation Behavior and Processing Maps of 26CrMo7S Steel Used in Oil Exploration

Jiang,

Li,

Huang

et al. 2023

Materials

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“…x n x n n V (7) The variables used in this study were as follows: i represents the particle label, j represents the particle dimension, n represents evolutional generation, Vij represents particle The optimisation problem is formulated as shown:…”

Section: Response Surface Model Searching By Psomentioning

confidence: 99%

“…It is essential for forging equipment to be simple, reliable and of high stiffness to meet increasingly complex technological requirements. As a result, the high-precision design of press machines has become a focus of research internationally [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Research on the Application of Structural Topology Optimisation in the High-Precision Design of a Press Machine Frame

Tong,

Shen,

Fang

et al. 2024

Processes

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This article aims to optimise the structure of a press machine to enhance its stability and accuracy, as well as reduce the frame deformation during processing. The outer supporting frame of the JH31-250 press machine (Zhejiang Weili Forging Machinery Co., Ltd, Shaoxing, China) is used as a typical sample for exploring optimisation. Commercial software is utilised to conduct a finite element analysis on the three-dimensional model of the press machine frame. A topological optimisation algorithm using the solid isotropic microstructures with penalisation (SIMP) method is then applied to improve the structure of the press frame. The size of the topological structure is further refined with the response surface method and particle swarm optimisation method to ensure it is more relevant to engineering application. The analysis results indicate that the initial frame’s deformation under the static conditions is 0.4229 mm, and after optimisation, the deformed structural displacement is 0.2548 mm, a decrease of 39.75%. Additionally, a simplified experimental method is designed to effectively validate the simulation and the proposed design.

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Understanding Stress Corrosion Cracking (SCC), Affecting Variables and Prevention Strategies in Nuclear Power Plants—A Review

Amiri,

Toor,

Shams

2024

Arab J Sci Eng

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Microstructure evolution, hot deformation behaviour and processing map of Inconel X-750 superalloy in sub-solvus and super-solvus temperature ranges

Cited by 4 publications

References 32 publications

Hot Deformation Behavior and Processing Maps of 26CrMo7S Steel Used in Oil Exploration

Hot Deformation Behavior and Processing Maps of 26CrMo7S Steel Used in Oil Exploration

Research on the Application of Structural Topology Optimisation in the High-Precision Design of a Press Machine Frame

Understanding Stress Corrosion Cracking (SCC), Affecting Variables and Prevention Strategies in Nuclear Power Plants—A Review

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