Selected issues of materials testing of rolling bearings adapted to work in elevated temperatures

Autor: Krzysztof Łęczycki
Rok vydání: 2018
Předmět:
Zdroj: Transportation Overview - Przeglad Komunikacyjny. 2018:28-39
ISSN: 2544-6037
0033-2232
DOI: 10.35117/a_eng_18_09_04
Popis: Rolling bearings are crucial component of aviation turbine engines. Bearing failure may, in worst case, lead to an engine failure and aircraft disaster. Therefore, investigation of their causes and subsequent risk factors elimination are of utmost importance. In the present study, selected materials testing issues of two rolling bearings from light rotorcraft turbine enignes failures (in accidents of 2016 & 2017) are discussed. Results of macroscopic, hardness tests, microstructure and chemical assay are presented. The obtained data are compared with results of previous studies on the subject.
Databáze: OpenAIRE