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Special Issue "Use of Modern Materials in Technological Processes Accompanied by Frictional Heating (Volume II)"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Simulation and Design".

Deadline for manuscript submissions: 10 April 2024 | Viewed by 2404

Special Issue Editors

Prof. Dr. Aleksander Yevtushenko

E-Mail Website
Guest Editor
Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering, Bialystok University of Technology (BUT), 45C Wiejska Street, 15-351 Bialystok, Poland
Interests: processing of materials by friction; frictional heating process simulation; temperature fields and thermal stress state due to friction; thermal splitting, systems of heat dynamics of friction and wear at braking; selection of friction materials for braking couple
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Michal Kuciej

E-Mail Website
Guest Editor
Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering, Bialystok University of Technology (BUT), 45C Wiejska Street, 15-351 Bialystok, Poland
Interests: analytical and numerical non-linear models of frictional heating; friction materials in aircraft and trail braking systems; Thermal Barrier Coating (TBC); contact conductivity and convective cooling at friction heating; Carbon-Carbon (C/C) composite materials; temperature mode of clutches
Special Issues, Collections and Topics in MDPI journals
Dr. Katarzyna Topczewska

E-Mail Website1 Website2
Guest Editor Assistant
Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering, Bialystok University of Technology (BUT), 45C Wiejska Street, 15-351 Bialystok, Poland
Interests: mathematical modelling of frictional heating process; temperature and thermal stresses in the brake discs and clutches; transient heat conduction in non-homogeneous materials

Special Issue Information

Dear Colleagues,

Friction is widely used in grinding, welding, cutting, and other technological processes. Thermal phenomena accompanying friction have a decisive influence on both the course of these processes and on the quality of the result. Due to the extensive use in the industry of alloys based on magnesium, titanium, and aluminum, as well as new marks of steel and other materials sensitive to thermal effects, the thermal processes of friction are extremely important. In particular, it is necessary to note the use of friction during braking. The frictional materials used in brake units should provide the necessary value and stability of the coefficient of friction. The problem is that in heavy braking modes, the coefficient of friction, as well as the material properties, become thermally sensitive. In this case, one way to improve the frictional properties is using the thermal barrier coating (TBC) method.

The physical and mechanical state of the surface layers of rubbing elements is determined not only by the contact temperature, which can be measured experimentally, but by the entire space–time temperature field. Gradients of temperature and the rate of changes in the temperature field have the most value. These factors have unambiguous functional relationships with the kinematic and dynamic parameters of the friction mode, material properties, cooling intensity, and many other parameters. There is a need for a comprehensive study, using all available methods, to investigate the temperature field and the resulting stress state. Reliable results can be obtained only with a reasonable combination of theory and experiment.

Prof. Dr. Aleksander Yevtushenko
Prof. Dr. Michal Kuciej
Dr. Katarzyna Topczewska
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • frictional heating
  • braking, grinding, welding, cutting, drilling, etc.
  • temperature and thermal stresses
  • experimental methods and simulations
  • materials selection
  • thermal barrier coating.

Published Papers (4 papers)

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Research

25 pages, 3290 KiB  
Article
The Mutual Influence of Thermal Contact Conductivity and Convective Cooling on the Temperature Field in a Tribosystem with a Functionally Graded Strip
by
Aleksander Yevtushenko
,
Katarzyna Topczewska
and
Przemysław Zamojski
Materials 2023, 16(22), 7126; https://doi.org/10.3390/ma16227126 - 10 Nov 2023
Viewed by 299
Abstract
An analytical model to find the temperature field that has been developed for friction systems consists of a strip and semi-space. The strip is made of a two-component functionally graded material (FGM) with an exponentially changing coefficient of thermal conductivity. In contrast, the [...] Read more.
An analytical model to find the temperature field that has been developed for friction systems consists of a strip and semi-space. The strip is made of a two-component functionally graded material (FGM) with an exponentially changing coefficient of thermal conductivity. In contrast, the material of the semi-space is homogeneous. An appropriate boundary-value problem of heat conduction with constant specific friction power was formulated and solved using the Laplace integral transform method. The model takes into consideration the imperfect thermal friction contact between the strip and the semi-space, and also the convective cooling on the exposed surface of the strip. The appropriate asymptotic solutions to this problem for low and high values of Fourier number were obtained. It is shown how the determined exact solution can be generalized using Duhamel’s formula for the case of a linearly reduction in time-specific friction power (a braking process with constant deceleration). Numerical analysis for selected materials of the friction pair was carried out in terms of examining the mutual impact on the temperature of the two Biot numbers, characterizing the intensity of the thermal contact conductivity and convective heat exchange on the exposed surface of the strip. The obtained results can be used to predict the temperature of friction systems containing elements made of FGM. In particular, such systems include modern disc braking systems. Full article
(This article belongs to the Special Issue Use of Modern Materials in Technological Processes Accompanied by Frictional Heating (Volume II))
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18 pages, 2378 KiB  
Article
Effect of Convective Cooling on the Temperature in a Friction System with Functionally Graded Strip
by
Aleksander Yevtushenko
,
Michał Kuciej
,
Katarzyna Topczewska
and
Przemysław Zamojski
Materials 2023, 16(15), 5228; https://doi.org/10.3390/ma16155228 - 25 Jul 2023
Cited by 1 | Viewed by 505
Abstract
An exact solution of the boundary-value problem of heat conduction was obtained with consideration of heat generation due to friction and convective cooling for the strip/semi-space system. Analytical solutions to this problem are known for the case with both friction elements made of [...] Read more.
An exact solution of the boundary-value problem of heat conduction was obtained with consideration of heat generation due to friction and convective cooling for the strip/semi-space system. Analytical solutions to this problem are known for the case with both friction elements made of homogeneous materials or a composite layer with a micro-periodic structure. However, in this study, the strip is made of a two-component functionally gradient material (FGM). In addition, the exact, asymptotic solutions were also determined at small and large values of the Fourier number. By means of Duhamel’s theorem, it was shown that the developed solution for a constant friction power allows to obtain appropriate solutions with a changing time profile of this value during heating. Numerical analysis in dimensionless form was carried out for the FGM (ZrO2—Ti-6Al-4V) strip in combination with the cast iron semi-space. The influence of the convective cooling intensity (Biot number) on the temperature field in the considered friction system was investigated. The developed mathematical model allows for a quick estimation of the maximum temperature of systems, in which one of the elements (FGM strip) is heated on the friction surface and cooled by convection on the free surface. Full article
(This article belongs to the Special Issue Use of Modern Materials in Technological Processes Accompanied by Frictional Heating (Volume II))
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20 pages, 3279 KiB  
Article
Influence of Functionally Graded Protective Coating on the Temperature in a Braking System
by
Aleksander Yevtushenko
,
Katarzyna Topczewska
and
Przemysław Zamojski
Materials 2023, 16(12), 4308; https://doi.org/10.3390/ma16124308 - 10 Jun 2023
Cited by 1 | Viewed by 612
Abstract
A mathematical model of heat generation due to friction in a disc–pad braking system was developed with consideration of a thermal barrier coating (TBC) on the friction surface of the disc. The coating was made of functionally graded material (FGM). The three-element geometrical [...] Read more.
A mathematical model of heat generation due to friction in a disc–pad braking system was developed with consideration of a thermal barrier coating (TBC) on the friction surface of the disc. The coating was made of functionally graded material (FGM). The three-element geometrical scheme of the system consisted of two homogeneous half-spaces (pad and disc) and a functionally graded coating (FGC) deposited on the friction surface of the disc. It was assumed that the frictional heat generated on the coating-pad contact surface was absorbed to the insides of friction elements along the normal to this surface. Thermal contact of friction between the coating and the pad as well as the heat contact between the coating and the substrate were perfect. On the basis of such assumptions, the thermal friction problem was formulated, and its exact solution was obtained for constant and linearly descending specific friction power over time. For the first case, the asymptotic solutions for small and large values of time were also found. A numerical analysis was performed on an example of the system containing a metal ceramic (FMC-11) pad, sliding on the surface of a FGC (ZrO2–Ti-6Al-4V) applied on a cast iron (ChNMKh) disc. It was established that the application of a TBC made of FGM on the surface of a disc could effectively reduce the level of temperature achieved during braking. Full article
(This article belongs to the Special Issue Use of Modern Materials in Technological Processes Accompanied by Frictional Heating (Volume II))
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19 pages, 1933 KiB  
Article
Use of Functionally Graded Material to Decrease Maximum Temperature of a Coating–Substrate System
by
Aleksander Yevtushenko
,
Katarzyna Topczewska
and
Przemysław Zamojski
Materials 2023, 16(6), 2265; https://doi.org/10.3390/ma16062265 - 11 Mar 2023
Cited by 4 | Viewed by 676
Abstract
A mathematical model for determining the temperature distribution in the system consisting of a coating deposited on the surface of substrate was proposed. The foundation material is homogeneous, while the coating is made of a functionally gradient material (FGM) with thermal conductivity increasing [...] Read more.
A mathematical model for determining the temperature distribution in the system consisting of a coating deposited on the surface of substrate was proposed. The foundation material is homogeneous, while the coating is made of a functionally gradient material (FGM) with thermal conductivity increasing exponentially along the thickness. Heating processes of the outer surface of the coating were considered with a constant and linearly decreasing in time intensity of the heat flux. Such thermal loads are common in thermal problems of friction, particularly regarding frictional heating during braking. An exact (in quadrature) solution of the corresponding boundary-value problems of parabolic heat conduction was obtained. Asymptotic solutions to these problems were also found for small and large values of the Fourier number. Calculations were performed for a coating made of two-component FGM ZrO2—Ti-6Al-4V, applied on a cast iron substrate. In order to explain the effect of FGM on temperature, corresponding analysis was carried out for the coating made of a homogeneous (ZrO2) material. Full article
(This article belongs to the Special Issue Use of Modern Materials in Technological Processes Accompanied by Frictional Heating (Volume II))
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