Exploiting Electropulses to Optimize Microstructure in Ti–6Al–4V Fabricated by Selective Laser Melting

Lee, Seong Ho; Yu, Jinyeong; Cheon, Seho; Kim, Jung Gi; Lee, Taekyung

doi:10.1007/s12540-023-01544-1

Met. Mater. Int.

2023

DOI: 10.1007/s12540-023-01544-1

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Exploiting Electropulses to Optimize Microstructure in Ti–6Al–4V Fabricated by Selective Laser Melting

Seong Ho Lee,

Jinyeong Yu,

Seho Cheon

et al.

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2024

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Cited by 2 publications

References 44 publications

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Improved Prediction for Nonlinear Thermal History of Mg Alloy Subjected to Multiple Electropulses

Yu,

Cheon,

Lee

et al. 2024

Adv Eng Mater

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The repeated rapid heating and nonlinear cooling associated with electropulsing treatment (EPT) hinder the accurate modeling of temperature variations based on a constitutive approach using physical models. This objective is not attainable through conventional machine learning (ML) approaches as well, such as artificial neural network (ANN) and long short‐term memory (LSTM). The present study investigates the intricate nonlinear thermal history of Mg alloys induced by EPT to improve a predictive model under multipulse conditions. Furthermore, it enhances the predictivity and generalizability of a given problem using an ML model called i‐LSTM by specifically tailoring a dataset. The i‐LSTM model performance surpasses that of the constitutive approaches and conventional ML models when predicting the complicated thermal history of EPT specimens in a wide variety of processing parameters. The mechanisms underlying this improvement are discussed based on several experimental datasets. This study not only addresses challenges in existing models but also offers a promising avenue for understanding and predicting the thermal dynamics of Mg alloys subjected to the multipulse EPT process.

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Improved Prediction for Nonlinear Thermal History of Mg Alloy Subjected to Multiple Electropulses

Yu,

Cheon,

Lee

et al. 2024

Adv Eng Mater

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Electropulsing anisotropy of cold-rolled Grade 2 titanium sheet: Effect of electric current direction on recrystallization and hardness

Lee,

Bae,

et al. 2024

Journal of Materials Research and Technology

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Exploiting Electropulses to Optimize Microstructure in Ti–6Al–4V Fabricated by Selective Laser Melting

Cited by 2 publications

References 44 publications

Improved Prediction for Nonlinear Thermal History of Mg Alloy Subjected to Multiple Electropulses

Improved Prediction for Nonlinear Thermal History of Mg Alloy Subjected to Multiple Electropulses

Electropulsing anisotropy of cold-rolled Grade 2 titanium sheet: Effect of electric current direction on recrystallization and hardness

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