Failure Analysis and the Evaluation of Forced-in Joint Reliability for Selected Operation Conditions
| Autor: | Zdeněk Aleš, J. Čedík, Martin Pexa, Sławomir Kowalski |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
integumentary system TiSiN coating forced-in joint Surfaces and Interfaces Bending Tribology engineering.material Engineering (General). Civil engineering (General) Fatigue limit forced-in joint reliability Surfaces Coatings and Films body regions reliability indicators Coating finish rolling Materials Chemistry Adhesive wear engineering Composite material TA1-2040 Joint (geology) Intensity (heat transfer) Reliability (statistics) |
| Zdroj: | Coatings Volume 11 Issue 11 Coatings, Vol 11, Iss 1305, p 1305 (2021) |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings11111305 |
| Popis: | In this article, sample damage and wear of forced-in joints is presented, and their reliability evaluated. Compared were shafts without additional finish treatment, rolled shafts and those with a TiSiN coating. Tribological samples under investigation operated in rotational bending conditions. Recorded was the number of fatigue cycles at which damage might occur. Reliability indicators were plotted, which demonstrated that coated shafts are distinguished by the highest reliability and low damage intensity. Macroscopic observations of shaft surfaces demonstrated the traces of adhesive wear and, in the case of shafts without additional treatment and in the case of rolled shafts, fretting wear traces in the form of a ring comprising the entire shaft circumference. Microscopic observations showed numerous build-ups on the surface, microcracks, and the occurrence of wear products in the gap between the shaft and sleeve. The highest fatigue strength was demonstrated by shafts with a TiSiN coating. The shaft section change area was the place where fatigue wear occurred. |
| Databáze: | OpenAIRE |
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