DOI: 10.52150/2522-9117-2025-39-23
Ye. S. Klemeshov1, Ph. D. (Tech.), Senior Researcher, ORCID 0000-0001-6486-5319
I. Yu. Prykhodko1, D. Sc. (Tech.), Senior Researcher, ORCID 0000-0001-5651-8106
1 Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova Square, 1, Dnipro, 49107, Ukraine
* Corresponding author: klemeshov.evgen@gmail.com
DEVELOPMENT OF ANALYTICAL METHODS FOR ASSESSING THE CONDITIONS OF BONDING AND DEBONDING OF METAL LAYERS IN MULTILAYER ROLLING
Abstract. To ensure the reliability and durability of bimetallic and multilayer strips or sheets produced by rolling, it is crucial to evaluate the bond strength during their manufacturing stage. To date, there are numerous different methods for assessing bond strength, and modern research often employs several such methods simultaneously to control and evaluate the bond strength of the obtained samples. The most popular assessment methods are those involving mechanical testing of bond strength, such as shear tests, peel tests, and in some cases, bending tests. These methods are popular because they are simple, and as a result of the tests, researchers obtain a specific quantitative value that characterizes the bond strength. There are also methods for microstructural evaluation of bond strength using optical microscopy (OM), scanning electron microscopy (SEM) with EDS analysis, radiography, and hardness measurements of the layers at the bonding interface. Almost all the listed methods for assessing the condition of the bonding interface and the bond strength itself are used after physical experiments have been conducted, thus increasing the time and material costs of research. At the same time, FEM modeling can be used both before and after physical experiments. However, this method is very rarely used for predicting the possibility of bonding and for assessing the bond strength of metal layers. Existing models for calculating the metal layer bonding process take into account numerous variables, which are typically obtained purely empirically and are adapted only for specific parameters of the rolling process to achieve fairly accurate results. However, they are also quite cumbersome, complex, and not universal in application, which limits their capability for calculating various layer and material combinations in technology development. Thus, the relevant task is the development of more universal calculation methods for assessing the bond strength of layers in bimetallic and multilayer rolling using FEM simulation software. Based on numerous studies in the field of metal layer bonding during rolling, a criterion for metal layer bonding and a methodology for calculating the bond strength of metal layers during cold rolling have been developed. The developed methodology can be implemented using computer simulation in the QForm UK software by utilizing a built-in tool such as “user subroutines.”
Keywords: bimetal, rolling, bond strength, assessment method, computer simulation.
Citation: Klemeshov, Ye. S., & Prykhodko, I. Yu. (2025). Development of analytical methods for assessing the conditions of bonding and debonding of metal layers in multilayer rolling. Fundamental and Applied Problems of Ferrous Metallurgy, 39, 361-372. https://doi.org/10.52150/2522-9117-2025-39-23
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Received 30.06.2025
Accepted 21.10.2025
Published online 01.12.2025
