h1

%0 Thesis
%A Özel, Mehmet Ozan
%T Entstehung von White Etching Areas und White Etching Cracks als Folge der Wälzbeanspruchung im Stahl 100Cr6
%V 17
%I RWTH Aachen University
%V Dissertation
%C Aachen
%M RWTH-2018-227502
%@ 978-3-8440-6092-8
%B Werkstoffanwendungen im Maschinenbau
%P 1 Online-Ressource (xvii, 158 Seiten) : Illustrationen
%D 2018
%Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University
%Z Dissertation, RWTH Aachen University, 2018
%X Despite intensive research on 100Cr6 bearing steel over the course of the last decades, it should be noted that phenomena such as the premature bearing failure due to formation of white etching areas (WEAs) and white etching cracks (WECs) can not be fully explained. Based on the literature with partly contradictory statements, it can be concluded that a general cause for the occurrence of the early failures can not be identified as of yet. In addition, it is reported consistently that WEA/WEC formation should only occur under the condition if the mechanical load during operation is superposed with additional loading and thus lead to the premature failure of these machine elements. The aim of the present work was to extend the current state of understanding of the damage mechanism and to evaluate the impact of relevant operating conditions and influencing factors such as hertzian pressure, slip, electric currents and diffusible hydrogen and their combination on the damage of the 100Cr6 bearing steel. Within this work the experimental investigations were started by running classical rolling contact fatigue tests on a four-wheel test rig. The test series were carried out to determine the endurance limit at ultimate load cycles of NG = 10^8 and a slip of −26 
%F PUB:(DE-HGF)3 ; PUB:(DE-HGF)11
%9 BookDissertation / PhD Thesis
%R 10.18154/RWTH-2018-227502
%U https://publications.rwth-aachen.de/record/731451