| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hintikka, Jouko
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Topics
Publications (13/13 displayed)
- 2022An insight into the rough surface effect on fretting characteristics of quenched and tempered steel
- 2022Microscopic characterization of fretting damage in quenched and tempered steel
- 2021Cracks and degradation layers in large flat-on-flat fretting contact with steels and cast ironcitations
- 2020Avoiding the initial adhesive friction peak in frettingcitations
- 2020Cracks and degradation layers in large flat-on-flat fretting contact with steels and cast ironcitations
- 2020Avoiding the high friction peak in fretting contactcitations
- 2019Highly ductile amorphous oxide at room temperature and high strain ratecitations
- 2019Highly ductile amorphous oxide at room temperature and high strain ratecitations
- 2019The formation and characterization of fretting-induced degradation layers using quenched and tempered steelcitations
- 2019Characterization of cracks formed in large flat-on-flat fretting contactcitations
- 2017Third Particle Ejection Effects on Wear with Quenched and Tempered Steel Fretting Contactcitations
- 2016Fretting Induced Friction, Wear and Fatigue in Quenched and Tempered Steel
- 2015Fretting-induced friction and wear in large flat-on-flat contact with quenched and tempered steelcitations
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document
Microscopic characterization of fretting damage in quenched and tempered steel
Abstract
Oscillatory tangential loading of in-contact bodies under a micrometer-scale sliding amplitude is termed fretting. Fretting can give rise to significant surface damage accompanied by unforeseen fatigue failure. This study focused on developing a method for the microscopic characterization of fretting-induced damages. The device used in this research caused a reciprocating movement between two annular specimens with large and flat-on-flat contact with no edge effects in fretting motion direction [1]. Under these circumstances, quenched and tempered steel (34CrNiMo6+QT) samples as the self-mated pairs were subjected to the fretting experiments using various normal pressures and sliding amplitudes. Then the microscopic instruments, for instance, the Leica MZ75 stereomicroscope, Alicona InfiniteFocus G5 model 3D optical microscope, and scanning electron microscope (SEM, JEOL IT-500) equipped with an energy dispersive X-ray spectrometer (EDS, EDAX DX4) were employed to investigate the surface and cross-sectional features of the fretted specimens, including the protrusions and depressions, wear debris, damaged layers, cracks, and so on. <br/>A specific methodology for microscopic examination of fretting degradation was developed as follows:<br/>1. A general view of the whole fretted surface by stereomicroscope. <br/>2. A quantitative measurement of fretting scars through the Alicona InfiniteFocus system to select the areas of interest for further characterization.<br/>3. A compositional and topographical study of the specified regions on the damaged surface, and then their cross-section analyses by means of SEM along with EDS analysis to find the elemental distribution. An SEM image of the crack propagation towards the inside of the sample is shown in Fig. 1.<br/>It can be concluded that the above-mentioned microscopic method can be an effective step-by-step technique to characterize the fretting scars by size, depth, surface, and subsurface damages. <br/>