Machine learning-assisted constitutive modeling of a novel powder metallurgy superalloy

H Wen, J Jin, X Tang, X Wang, H Yang, Y Zhang… - International Journal of …, 2023 - Elsevier
The flow behavior and microstructure evolution during thermomechanical processing (TMP)
of powder metallurgy superalloys are very important for their service behavior. In this …

[HTML][HTML] Optimization of flow behavior models by genetic algorithm: A case study of aluminum alloy

S Li, W Chen, S Jain, D Jung, J Lee - Journal of Materials Research and …, 2024 - Elsevier
Prediction of the flow stress of materials using a flow constitutive model provides strong
support for engineering practice and promotes the continuous development of aluminum …

Revealing the hot deformation behavior of AZ42 Mg alloy by using 3D hot processing map based on a novel NGO-ANN model

M Ning, X Chen, Y Lin, H Hu, X Zhou, J Zhang… - Journal of Materials …, 2023 - Elsevier
The hot deformation behavior of AZ42 alloy was observed using thermal compression tests
at a temperature scope of 250–400° C and strain rate scope of 0.001–1 s− 1. True stress …

Investigation of deformation behavior and strain-induced precipitations in Al–Zn–Mg–Cu alloys across a wide temperature range

Q Zhang, J Zuo, C Yang, Y Xia, X Shu, B Mei… - Scientific Reports, 2024 - nature.com
This study explores the hot deformation behavior of Al–Zn–Mg–Cu alloy through uniaxial hot
compression (200° C–450° C) using the Gleeble-1500. True stress–strain curves were …

Hybrid artificial neural network-based models to investigate deformation behavior of AZ31B magnesium alloy at warm tensile deformation

M Murugesan, JH Yu, W Chung, CW Lee - Materials, 2023 - mdpi.com
The uniaxial warm tensile experiments were carried out in deformation temperatures (50–
250° C) and strain rates (0.005 to 0.0167 s− 1) to investigate the material workability and to …

[HTML][HTML] Enhancing constitutive description and workability characterization of Mg alloy during hot deformation using machine learning-based Arrhenius-type model

J Long, L Deng, J Jin, M Zhang, X Tang, P Gong… - Journal of Magnesium …, 2024 - Elsevier
Hot deformation is a commonly employed processing technique to enhance the ductility and
workability of Mg alloy. However, the hot deformation of Mg alloy is highly sensitive to factors …

High-Temperature Compression Behaviors and Constitutive Models of a 7046-Aluminum Alloy

D He, H Xie, Y Lin, Z Xu, X Tan, G Xiao - Materials, 2023 - mdpi.com
High-temperature forming behaviors of a 7046-aluminum alloy were investigated by hot
compression experiments. The microstructural evolution features with the changes in …

Investigation of deformation behavior of Mg-2Ho alloy based on hyperbolic sine constitutive equation and PSO-BP neural network

X Li, Y Liu, S Luan, D Ma, X Liu, Q Liu… - Materials Today …, 2024 - Elsevier
In this study, uniaxial hot compression experiments were conducted on as-cast Mg-2Ho
binary alloy that had undergone heat treatment. The hot deformation behavior of the alloy …

The Prediction of Flow Stress in the Hot Compression of a Ni-Cr-Mo Steel Using Machine Learning Algorithms

T Pan, C Song, Z Gao, T Xia, T Wang - Processes, 2024 - mdpi.com
The constitutive model refers to the mapping relationship between the stress and
deformation conditions (such as strain, strain rate, and temperature) after being loaded. In …

New hot workability prediction method under non-constant deformation conditions

S Guo, C Liu, S Liang, S Barella, Y Peng… - International Journal of …, 2024 - Elsevier
The deformation conditions of metallic materials constantly change during forming and
manufacturing technology. The thermomechanical processing theory cannot be applied to …