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Title | Impact of Nitrocarburizing on Hardening of Reciprocating Compressor’s Valves |
Authors |
Berladir, Khrystyna Volodymyrivna
Hatala, M. Hovorun, Tetiana Pavlivna Pavlenko, Ivan Volodymyrovych Ivanov, Vitalii Oleksandrovych Botko, F. Husak, Oleksandr Hryhorovych |
ORCID |
http://orcid.org/0000-0002-4287-8204 http://orcid.org/0000-0002-9384-5250 http://orcid.org/0000-0002-6136-1040 http://orcid.org/0000-0003-0595-2660 |
Keywords |
chemical–thermal treatment energy efficiency nitrocarburizing flow valve reciprocating compressor industrial innovation corrosion-resistant steel; predictive maintenance fatigue stress |
Type | Article |
Date of Issue | 2022 |
URI | https://essuir.sumdu.edu.ua/handle/123456789/87788 |
Publisher | MDPI |
License | Creative Commons Attribution 4.0 International License |
Citation | Berladir, K.; Hatala, M.; Hovorun, T.; Pavlenko, I.; Ivanov, V.; Botko, F.; Gusak, O. Impact of Nitrocarburizing on Hardening of Reciprocating Compressor’s Valves. Coatings 2022, 12, 574. https://doi.org/10.3390/coatings12050574 |
Abstract |
One of the urgent problems in reciprocating machinery is ensuring the functional properties of direct-flow valves. Coatings of these parts should increase energy efficiency, reduce compressed gas temperature, and increase compressor performance. In this article, the effect of nitrocarburizing in pastes on increasing the performance and resource of such valves was studied. The primary research methods were metallographic and electron-metallographic research of the surface layer structure of steel 60Si2Cr. Comparison with similar characteristics obtained for stainless steel 09Cr15Ni8Al was also performed. As a result, it was determined that nitrocarburizing of carbon spring steel 60Si2Cr leads to a greater depth of the diffusion layer than nitrocarburizing of alloyed chromium-nickel steel 09Cr15Ni8Al. Simultaneously, the diffusion layers of both types of steel are almost the same. Simultaneously, the increase in the endurance limit of 60Si2Cr steel during nitrocarburizing is about 1.3 times compared to untreated material. Finally, the predictive maintenance showed that the evaluated lifetime of nitrocarburized valves increases by 5.7 times compared with untreated valves. |
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File | Size | Format | Downloads |
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Berladir_et_al_Impact_of_Nitrocarburizing_2022.pdf | 4.91 MB | Adobe PDF | 27736680 |
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