Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel

Research on microstructure changes and structural defects (using the example of dislocation density) of samples made of high-speed steel R6M5 and irradiated with a single high-energy laser pulse as well as the effect of these changes on the abrasive wear resistance of the studied material is present...

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Главные авторы:	Pinakhin, I. A., Пинахин, И. А., Yagmurov, M. A., Ягмуров, М. А., Vrublevskaya, S. S., Врублевская, С. С., Shpak, M. А., Шпак, М. А.
Формат:	Статья
Язык:	English
Опубликовано:	Pleiades Publishing 2025
Темы:	Abrasive wear X-ray phase analysis Cutting tools Hardening High-speed steel Laser Microstructural analysis Shock wave Wear resistance X-ray diffraction analysis
Online-ссылка:	https://dspace.ncfu.ru/handle/123456789/31832
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spelling	ir-123456789-318322025-08-11T09:33:08Z Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel Pinakhin, I. A. Пинахин, И. А. Yagmurov, M. A. Ягмуров, М. А. Vrublevskaya, S. S. Врублевская, С. С. Shpak, M. А. Шпак, М. А. Abrasive wear X-ray phase analysis Cutting tools Hardening High-speed steel Laser Microstructural analysis Shock wave Wear resistance X-ray diffraction analysis Research on microstructure changes and structural defects (using the example of dislocation density) of samples made of high-speed steel R6M5 and irradiated with a single high-energy laser pulse as well as the effect of these changes on the abrasive wear resistance of the studied material is presented in the article. It was found that the proposed laser treatment significantly affects the microstructure of the irradiated samples. This is expressed in the almost complete disappearance of the banded distribution of carbides in the samples, which indicates a partial redistribution and dissolution of “heavy” carbides of the Me<inf>6</inf>C type containing tungsten and molybdenum in the material matrix (martensite). In this case, the configuration of heavy Me6C carbides is located between the formulas Fe<inf>3</inf>(W,Mo)<inf>3</inf>C–Fe<inf>4</inf>(W,Mo)<inf>2</inf>C. Also, exposure to a high-energy laser pulse leads to an increase in the quantity and size of secondary carbides in the alloy matrix, significantly enriched in tungsten and molybdenum. In addition, there is a change in the type of vanadium carbides from Me<inf>2</inf>C to VC, accompanied by a significant decrease in the amount of molybdenum and tungsten in it. Using the Thixomet image analysis program, it was determined that the number of grains of heavy Me<inf>6</inf>C carbides in terms of volume decreased by 1.30–1.58 times, depending on the distance from the point of interest to the irradiation place of the sample. At the same time, the average size and direction (anisotropy) of the material grains has not changed. The results of X-ray phase analysis showed that after treatment, the number of main phases of the samples remained practically unchanged in distribution, but there was an increase in the responses intensity. Based on the above, the change in the structure defectiveness was determined using the example of dislocation density. The results of abrasive wear tests showed that there is an increase in the wear resistance of irradiated samples by 1.58–2.48 times, depending on the distance from the point of interest to the irradiation place of the sample. In this case, the value of the greatest wear resistance (2.48 times) is achieved with the greatest microstructure changes and structure defectiveness, which corresponds to the distance from the point of interest to the irradiation place of the sample equal to 20 mm. The obtained results allow us to recommend the use of the microstructural analysis method for assigning optimal modes of laser hardening of materials. 2025-08-11T09:30:55Z 2025-08-11T09:30:55Z 2025 Статья Pinahin, I. A., Sharma, S. K, Yagmurov, M. A., Vrublevskaya, S. S., Shpack, M. A. Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel // Journal of Friction and Wear. - 2025. - 46 (1). - pp. 26 - 32. - DOI: 10.3103/S1068366625700266 https://dspace.ncfu.ru/handle/123456789/31832 en Journal of Friction and Wear application/pdf application/pdf Pleiades Publishing
institution	СКФУ
collection	Репозиторий
language	English
topic	Abrasive wear X-ray phase analysis Cutting tools Hardening High-speed steel Laser Microstructural analysis Shock wave Wear resistance X-ray diffraction analysis
spellingShingle	Abrasive wear X-ray phase analysis Cutting tools Hardening High-speed steel Laser Microstructural analysis Shock wave Wear resistance X-ray diffraction analysis Pinakhin, I. A. Пинахин, И. А. Yagmurov, M. A. Ягмуров, М. А. Vrublevskaya, S. S. Врублевская, С. С. Shpak, M. А. Шпак, М. А. Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel
description	Research on microstructure changes and structural defects (using the example of dislocation density) of samples made of high-speed steel R6M5 and irradiated with a single high-energy laser pulse as well as the effect of these changes on the abrasive wear resistance of the studied material is presented in the article. It was found that the proposed laser treatment significantly affects the microstructure of the irradiated samples. This is expressed in the almost complete disappearance of the banded distribution of carbides in the samples, which indicates a partial redistribution and dissolution of “heavy” carbides of the Me<inf>6</inf>C type containing tungsten and molybdenum in the material matrix (martensite). In this case, the configuration of heavy Me6C carbides is located between the formulas Fe<inf>3</inf>(W,Mo)<inf>3</inf>C–Fe<inf>4</inf>(W,Mo)<inf>2</inf>C. Also, exposure to a high-energy laser pulse leads to an increase in the quantity and size of secondary carbides in the alloy matrix, significantly enriched in tungsten and molybdenum. In addition, there is a change in the type of vanadium carbides from Me<inf>2</inf>C to VC, accompanied by a significant decrease in the amount of molybdenum and tungsten in it. Using the Thixomet image analysis program, it was determined that the number of grains of heavy Me<inf>6</inf>C carbides in terms of volume decreased by 1.30–1.58 times, depending on the distance from the point of interest to the irradiation place of the sample. At the same time, the average size and direction (anisotropy) of the material grains has not changed. The results of X-ray phase analysis showed that after treatment, the number of main phases of the samples remained practically unchanged in distribution, but there was an increase in the responses intensity. Based on the above, the change in the structure defectiveness was determined using the example of dislocation density. The results of abrasive wear tests showed that there is an increase in the wear resistance of irradiated samples by 1.58–2.48 times, depending on the distance from the point of interest to the irradiation place of the sample. In this case, the value of the greatest wear resistance (2.48 times) is achieved with the greatest microstructure changes and structure defectiveness, which corresponds to the distance from the point of interest to the irradiation place of the sample equal to 20 mm. The obtained results allow us to recommend the use of the microstructural analysis method for assigning optimal modes of laser hardening of materials.
format	Статья
author	Pinakhin, I. A. Пинахин, И. А. Yagmurov, M. A. Ягмуров, М. А. Vrublevskaya, S. S. Врублевская, С. С. Shpak, M. А. Шпак, М. А.
author_facet	Pinakhin, I. A. Пинахин, И. А. Yagmurov, M. A. Ягмуров, М. А. Vrublevskaya, S. S. Врублевская, С. С. Shpak, M. А. Шпак, М. А.
author_sort	Pinakhin, I. A.
title	Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel
title_short	Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel
title_full	Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel
title_fullStr	Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel
title_full_unstemmed	Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel
title_sort	comprehensive study of the single high-energy laser pulse effect on the wear resistance of r6m5 steel
publisher	Pleiades Publishing
publishDate	2025
url	https://dspace.ncfu.ru/handle/123456789/31832
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Comprehensive Study of the Single High-Energy Laser Pulse Effect on the Wear Resistance of R6M5 Steel

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