Combined vacuum-arc hardening of frictional unit components
For increasing the service life of steel components that form a friction pair and are operated under conditions of dynamic loads, elevated temperatures and corrosive media, the process of working contact surface modification has been developed with the use of the vacuum-arc technique. The process...
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| Date: | 2016 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2016
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| Series: | Вопросы атомной науки и техники |
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/115410 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Combined vacuum-arc hardening of frictional unit components / V.A. Belous, I.G. Yermolenko, Yu.A. Zadneprovsky, N.S. Lomino // Вопросы атомной науки и техники. — 2016. — № 4. — С. 93-99. — Бібліогр.: 8 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | For increasing the service life of steel components that form a friction pair and are operated under conditions of
dynamic loads, elevated temperatures and corrosive media, the process of working contact surface modification has
been developed with the use of the vacuum-arc technique. The process has been realized in a two-stage
technological cycle, including hardening of the base material by ion-plasma nitriding that replaces effectively the
“furnace” nitriding, and a subsequent deposition of protective coatings Mo-N (molybdenum nitride) and Ti-N
(titanium nitride). Various physical properties of the modified samples (microhardness depth profiles, as well as
structure peculiarities of nitrided layers and nitride coatings) have been investigated as functions of the parameters
of the process under development. Comparative laboratory tests of service characteristics (abrasion/corrosion
resistances) of the components have been made, and an essential improvement of these characteristics has been
demonstrated for the modified surfaces. |
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