Academic Journal
Comparative analysis of the fatigue contact strength of surfaces hardened by cementation and the ion-plasma nitriding Аvinit N
| Τίτλος: | Comparative analysis of the fatigue contact strength of surfaces hardened by cementation and the ion-plasma nitriding Аvinit N |
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| Συγγραφείς: | Sagalovych, Alex, Popov, Viktor, Sagalovуch, Vladislav, Dudnik, Stanislav, Bogoslavzev, Vladimir, Stadnichenko, Nik, Edinovych, Andrey |
| Πηγή: | Eastern-European Journal of Enterprise Technologies; Том 6, № 12 (108) (2020): Матеріалознавство; 20-27 Eastern-European Journal of Enterprise Technologies; Том 6, № 12 (108) (2020): Материаловедение; 20-27 Eastern-European Journal of Enterprise Technologies; Том 6, № 12 (108) (2020): Materials Science; 20-27 |
| Στοιχεία εκδότη: | Private Company Technology Center, 2020. |
| Έτος έκδοσης: | 2020 |
| Θεματικοί όροι: | UDC 621.9.031, трение, качение с проскальзыванием поверхностей, контактная усталостная прочность, газовая цементация, плазменное азотирование, 0203 mechanical engineering, тертя, кочення з проковзуванням поверхонь, контактна втомна міцність, газова цементація, плазмове азотування, 0211 other engineering and technologies, 0202 electrical engineering, electronic engineering, information engineering, friction, rolling with surface slipping, contact fatigue strength, gas cementation, plasma nitriding, 02 engineering and technology, 0210 nano-technology |
| Περιγραφή: | This paper reports comparative tribotechnical tests of surfaces, hardened by cementation and plasma nitriding Avinit N, for contact fatigue strength at friction in rolling with slipping. Following the cementation, the samples' hardened layer thickness was 1.2 mm; on nitriding, the thickness of the hardened layer was 0.25 mm. The tests were carried out using an acoustic emission method, which is extremely sensitive when registering the transition of tribosystems' operation from the normal (mechanochemical) wear to the initial surface destruction of a fatigue nature. The tests have shown that the average number of cycles before the initial destruction due to fatigue for the samples hardened by the Avinit nitriding technology is 1.82-time higher compared to the cementation-hardened samples. The depth of damage at the surface of the cemented samples could vary between 0.01 and 0.027 mm depending on the diameter of the damage. For the nitrided surfaces, the depth of damage did not exceed 0.003 mm. The samples' resistance to the fatigue wear (destruction) was determined by tests based on 1,000,000 cycles at contact loads σ max =1,140 MPa, typical of medium-loaded surfaces. The test results demonstrated that the integrated multicyclic resistance to fatigue wear (destruction) of the samples, hardened by nitriding, is more than 10 times higher than that of the cementation-hardened samples. The study reported here confirms the effectiveness of using the Avinit ion-plasma nitriding technology instead of cementing, to improve the contact strength of the parts' surfaces. At the same time, worth noting are the advantages of this technology to maintain the size and high quality of surface treatment, which eliminates the need to mechanically finish them after hardening |
| Τύπος εγγράφου: | Article |
| Περιγραφή αρχείου: | application/pdf |
| ISSN: | 1729-4061 1729-3774 |
| DOI: | 10.15587/1729-4061.2020.217674 |
| Σύνδεσμος πρόσβασης: | http://journals.uran.ua/eejet/article/download/217674/221888 https://cyberleninka.ru/article/n/comparative-analysis-of-the-fatigue-contact-strength-of-surfaces-hardened-by-cementation-and-the-ion-plasma-nitriding-avinit-n/pdf http://journals.uran.ua/eejet/article/view/217674 http://journals.uran.ua/eejet/article/download/217674/221888 http://journals.uran.ua/eejet/article/view/217674 |
| Rights: | CC BY |
| Αριθμός Καταχώρησης: | edsair.doi.dedup.....77f16d2de9d1f1c4d048475bfcd6a30c |
| Βάση Δεδομένων: | OpenAIRE |
| ISSN: | 17294061 17293774 |
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| DOI: | 10.15587/1729-4061.2020.217674 |