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Article

Failure Analysis and the Evaluation of Forced-in Joint Reliability for Selected Operation Conditions

1
Technical Institute, State University of Applied Sciences in Nowy Sącz, 33-300 Nowy Sącz, Poland
2
Faculty of Engineering, Czech University of Life Sciences Prague, 165 00 Praha-Suchdol, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editor: Philipp Vladimirovich Kiryukhantsev-Korneev
Coatings 2021, 11(11), 1305; https://doi.org/10.3390/coatings11111305
Received: 9 October 2021 / Revised: 22 October 2021 / Accepted: 22 October 2021 / Published: 27 October 2021
(This article belongs to the Special Issue Application of Coatings in Industry and Means of Transport)
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. View Full-Text
Keywords: forced-in joint reliability; finish rolling; TiSiN coating; forced-in joint; reliability indicators forced-in joint reliability; finish rolling; TiSiN coating; forced-in joint; reliability indicators
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MDPI and ACS Style

Kowalski, S.; Pexa, M.; Aleš, Z.; Čedík, J. Failure Analysis and the Evaluation of Forced-in Joint Reliability for Selected Operation Conditions. Coatings 2021, 11, 1305. https://doi.org/10.3390/coatings11111305

AMA Style

Kowalski S, Pexa M, Aleš Z, Čedík J. Failure Analysis and the Evaluation of Forced-in Joint Reliability for Selected Operation Conditions. Coatings. 2021; 11(11):1305. https://doi.org/10.3390/coatings11111305

Chicago/Turabian Style

Kowalski, Sławomir, Martin Pexa, Zdeněk Aleš, and Jakub Čedík. 2021. "Failure Analysis and the Evaluation of Forced-in Joint Reliability for Selected Operation Conditions" Coatings 11, no. 11: 1305. https://doi.org/10.3390/coatings11111305

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