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Dive into the research topics where Mehmet Ozan Özel is active.

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Featured researches published by Mehmet Ozan Özel.


Microscopy and Microanalysis | 2015

Quantitative image analysis of white etching areas in SAE52100 bearing steel

Philippe T. Pinard; Mehmet Ozan Özel; Moritz Ploß; Silvia Richter

SAE 52100 bearing steel is a common steel grade for several types of bearings used in various applications such as automotive and wind turbines. It consists of a bainitic or martensitic matrix with 0.1 to 5 μm dia. spherical carbides. This material suffers from an unexpected failure mechanism where the bearing abruptly fails as early as 10% of its expected fatigue life [1]. The failure is associated with the formation of white etching areas (WEA) and white etching cracks (WEC) (named after their appearance after Nital etching) within the first millimeter below the contact surface. Different theories exist to explain these microstructural changes: hydrogen induced, carbide dissolution, initiation at inclusions, etc. To better understand the role of the operating conditions (loading, frequency, temperature, type of lubricants, etc.) on the WEA formation, a project was started with the aims of (1) reproducing bearing failures seen in the field within a laboratory-controlled environment, (2) correlating the observed microstructure to the operating conditions and ultimately (3) explaining the failure mechanism.


FVA Bearing World | 2016

Are WECs reproducible on test benches with realistic operational conditions

Francisco Gerardo Antonio Gutierrez Guzman; Mehmet Ozan Özel; Philippe Pinar; Ralf Dinter


21st International Colloquium Tribology | 2018

Investigation of the formation and morphology of White Etching Cracks using a two-disc test rig

Francisco Gerardo Antonio Gutierrez Guzman; Mehmet Ozan Özel; Georg Jacobs; Gero Burghardt; Daniel Cornel; Christoph Broeckmann; Thomas Leonid Michail Janitzky


2018 STLE Annual Meeting & Exhibition | 2018

Formation of White Etching Cracks (WEC) under rolling loading in a two-disc test rig and a kinematic study on a full-scale bearing

Francisco Gerardo Antonio Gutierrez Guzman; Christopher Sous; Mehmet Ozan Özel; Daniel Cornel; Adrian Mikitisin; Florian Steinweg; Thomas Leonid Michail Janitzky


Sixth World Tribology Congress | 2017

Influence of slip on the formation of White Etching Cracks on a two-disc test rig

Francisco Gerardo Antonio Gutierrez Guzman; Thomas Leonid Michail Janitzky; Christoph Broeckmann; Mehmet Ozan Özel; Gero Burghardt; Georg Jacobs


Sixth World Tribology Congress | 2017

Formation of WEC under rolling contact loading - Influence of slip and lubrication conditions

Georg Jacobs; Mehmet Ozan Özel; Francisco Gerardo Antonio Gutierrez Guzman; Gero Burghardt; Christoph Broeckmann


Bearing world journal | 2017

Influence of slip on the formation of White Etching Cracks on a two-disc test rig and a kinematic study on a full-scale bearing

Francisco Gerardo Antonio Gutierrez Guzman; Mehmet Ozan Özel; Georg Jacobs; J. Guenther; Gero Burghardt; Christoph Broeckmann; Thomas Leonid Michail Janitzky


Antriebstechnisches Kolloquium 2017 | 2017

Bildung von „White Etching Cracks“ (WEC) durch elektrischen Strom an ölgeschmierten Wälzkontakten

Francisco Gerardo Antonio Gutierrez Guzman; Thomas Leonid Michail Janitzky; Christoph Broeckmann; Mehmet Ozan Özel; Gero Burghardt; Georg Jacobs


Antriebstechnisches Kolloquium 2017 | 2017

Bildung von White Etching Cracks (WEC) durch elektrischen Strom und Schlupf an ölgeschmierten Wälzkontakten

Francisco Gerardo Antonio Gutierrez Guzman; Thomas Leonid Michail Janitzky; Christoph Broeckmann; Mehmet Ozan Özel; Gero Burghardt; Georg Jacobs


Archive | 2016

Risse auf Lagerringen - Gefügeveränderungen in Wälzlagerringen mit Rissen als Folgeschaden

Francisco Gerardo Antonio Gutierrez Guzman; Silvia Richter; Mehmet Ozan Özel

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