Modeling of CCT diagrams for tool steels using different machine learning techniques

X Geng, H Wang, W Xue, S Xiang, H Huang… - Computational Materials …, 2020 - Elsevier
Continuous cooling transformation (CCT) diagram is an important basis to make an optimal
heat treatment process of steels with a desired microstructure and properties. Therefore, it is …

Incorporation of prior knowledge in neural network model for continuous cooling of steel using genetic algorithm

S Chakraborty, PP Chattopadhyay, SK Ghosh… - Applied Soft …, 2017 - Elsevier
Artificial neural network model is developed for the prediction of phase transformation of
steel from austenite, and thus construction of the continuous cooling transformation (CCT) …

Structure–property relationship in a 960 MPa grade ultrahigh strength low carbon niobium–vanadium microalloyed steel: The significance of high frequency induction …

ZJ Xie, YP Fang, G Han, H Guo, RDK Misra… - Materials Science and …, 2014 - Elsevier
The present study describes the microstructure and precipitation behavior in an ultra-high
strength low carbon niobium–vanadium microalloyed steel that was processed by …

Numerical–Experimental correlation of microstructures, cooling rates and mechanical properties of AISI 1045 steel during the Jominy end-quench test

CRN Nunura, CA dos Santos, JA Spim - Materials & Design, 2015 - Elsevier
This work addresses the numerical correlation of the factors that may affect the hardenability
of AISI 1045 steel submitted to the Jominy end-quench test in three austenitizing …

Prediction of continuous cooling transformation diagrams for Ni-Cr-Mo welding steels via machine learning approaches

X Geng, H Wang, A Ullah, W Xue, S Xiang, L Meng… - JOM, 2020 - Springer
Continuous cooling transformation diagrams in synthetic weld heat-affected zones (SH-CCT
diagrams) are important tools to analyze the microstructure and mechanical properties of the …

Residual stresses induced by laser welding process in the case of a dual-phase steel DP600: Simulation and experimental approaches

A Kouadri-Henni, C Seang, B Malard, V Klosek - Materials & Design, 2017 - Elsevier
This study aimed at characterizing the residual stresses distribution of a DP600 undergoing
a laser beam welding. The residual stresses in the ferritic phase have been experimentally …

Testing point null hypothesis of a normal mean and the truth: 21st century perspective

CR Rao, MM Lovric - Journal of Modern Applied Statistical Methods, 2016 - jmasm.com
Testing a point (sharp) null hypothesis is arguably the most widely used statistical inferential
procedure in many fields of scientific research, nevertheless, the most controversial, and …

Extended continuous cooling transformation (CCT) diagrams determination for additive manufacturing deposited steels

K Halmešová, R Procházka, M Koukolíková, J Džugan… - Materials, 2022 - mdpi.com
Continuous cooling transformation (CCT) diagrams are widely used when heat treating
steels and represent which type of phase will occur in a material as it is cooled at different …

Modelling and experimental validation of microstructure evolution during the cooling stage of homogenization heat treatment of Al–Mg–Si alloys

Q Du, L Jia, K Tang, B Holmedal - Materialia, 2018 - Elsevier
A CALPHAD-coupled multi-component multi-phase Kampmann–Wagner Numerical
modelling framework has been adapted and coupled with a homogenization model to …

Proposal and assessment of a multiple cycle-continuous cooling transformation (MC-CCT) diagram for wire arc additive manufacturing of thin walls

M Högström, A Fadaei, A Rahimi, P Li, M Igestrand… - Metals, 2023 - mdpi.com
Continuous cooling transformation (CCT) diagrams of base metals are common in welding.
They can be built using physical or numerical simulations, each with advantages and …