Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Hybrid Method for Calculating the Chemical Composition of Steel with the Required Hardness After Cooling from the Austenitizing Temperature

Version 1 : Received: 30 November 2023 / Approved: 4 December 2023 / Online: 4 December 2023 (04:15:28 CET)

A peer-reviewed article of this Preprint also exists.

Trzaska, J.; Sitek, W. A Hybrid Method for Calculating the Chemical Composition of Steel with the Required Hardness after Cooling from the Austenitizing Temperature. Materials 2024, 17, 97. Trzaska, J.; Sitek, W. A Hybrid Method for Calculating the Chemical Composition of Steel with the Required Hardness after Cooling from the Austenitizing Temperature. Materials 2024, 17, 97.

Abstract

The article presents a hybrid method for calculating the chemical composition of steel with the required hardness after cooling from the austenitizing temperature. Artificial neural networks and genetic algorithms were used to develop the model. Based on 550 diagrams of continuous cooling transformation (CCT) of structural steels available in the literature, a dataset of experimental data was created. Artificial neural networks were used to develop a hardness model describing the relationship between the chemical composition of the steel, the austenitizing temperature, and the hardness of the steel after cooling. A genetic algorithm was used to identify the chemical composition of the steel with the required hardness. The value of the objective function was calculated using the neural network model. The developed method for identifying the chemical composition was implemented in a computer application. Examples of calculations of mass concentrations of steel elements with the required hardness after cooling from the austenitizing temperature are presented. The model proposed in this study can be a valuable tool to support chemical composition design by reducing the number of experiments and minimizing research costs.

Keywords

steel; artificial neural networks; genetic algorithm; optimization; materials by design; heat treatment; hardness

Subject

Chemistry and Materials Science, Materials Science and Technology

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