Title of the article |
ULTRASONIC NANOSTRUCTURING OF SURFACE LAYERS OF HIGH-CHROME STEELS AND THEIR TRIBOTECHNICAL PROPERTIES IN THE LUBRICANT MEDIA MODIFIED WITH ULTRADISPERSED CARBON-CONTAINING ADDITIVES |
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Authors |
VITYAZ Petr A., D. Sc. in Eng., Academician of NAS of Belarus, Head of the Department of Mechanical Engineering of Technologies and Metallurgy, Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus PANIN Victor Ye., D. Sc. in Phys. and Math., Prof., Academician of RAS, Head of the Laboratory of Physical Mesomechanics of Materials and Non-Destructive Testing, Institute of Strength Physics and Materials Science of Siberian Branch of Russian Academy of Sciences, Tomsk, Russia, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it. KUKAREKO Vladimir A., D. Sc. in Phys. and Math., Prof., Head of the Center for Structural Research and Tribo-Mechanical Testing of Materials and Engineering Products, Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it. GRIGORCHIK Aleksandr N., Ph. D. in Eng., Senior Researcher, Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus KONONOV Aleksandr G., Ph. D. in Phys. and Math., Senior Researcher, Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus POCHIVALOV Yuriy I., Ph. D. in Phys. and Math., Leading Researcher, Institute of Strength Physics and Materials Science of Siberian Branch of Russian Academy of Sciences, Tomsk, Russia, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it. |
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In the section | ACADEMIC SCIENCE | ||||
Year | 2017 | Issue | 3 | Pages | 26-32 |
Type of article | RAR | Index UDK | 621.891.2 | Index BBK | |
Abstract |
The influence of ultrasonic treatment of surface layers of steels 40X13 and 12X18H9 on their structure, durometric and tribotechnical properties was studied. It is shown that the ultrasonic treatment of these steels leads to theformation in their surface layer of an ultrafine structure with a subgrain size of ≈25–50 nm and provides an increase in the microhardness of steels by the factor of 2–3. It has been established that addition of ultradisperse carbon-containing additives to the liquid lubricant leads to an acceleration of running of tribo-conjugations, a decrease in the wear rate of 40X13 steel by 60 %, an intensification of the accumulation of crystal lattice defects in materials of a friction pair, and is accompanied with an increase in the microhardness of surface layers and a decrease in their roughness. It has been found that ultrasonic nanostructuring of the surface layer of steel 40X13 leads to an increase in its wear resistance by 20 % with friction in the I-20A lubricant and by 12 % in friction in an I-20A lubricant modified by UDAG particles. |
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Keywords |
40X13 and 12X18N9 high-chromium steels, ultrasonic treatment, structure, hardness, tribotechnical properties |
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