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Št. zadetkov: 6
Vpliv parametrov laserskega udarnega utrjevanja na zaostale napetosti v visoko-trdnostnih aluminijevih zlitinah
Jan Ahačič, Uroš Trdan, Laurent Berthe
Diplomsko delo
Oznake: diplomske naloge;visoko-trdnostne aluminijeve zlitine;površinsko utrjevanje s plastično deformacijo;lasersko udarno utrjevanje;zaostale napetosti;rentgenska difrakcija;
Izločevalno utrjene, visokotrdnostne aluminijeve (Al) zlitine so v industriji pomemben ter nepogrešljiv material predvsem zaradi dobrega razmerja med trdnostjo in gostoto. V letalski industriji so tako še vedno pogosto v uporabi, kljub velikemu porastu kompozitnih materialov z ogljikovimi vlakni, oj ...
Leto: 2021 Vir: Fakulteta za strojništvo (UL FS)
Implementation of the Almen intensity for the characterization of laser shock peening
Boutaina Elkhalki, Maxime Guerbois, Uroš Trdan, Laurent Berthe
Izvirni znanstveni članek
Oznake: lasersko udarno utrjevanje;intenziteta po Almenu;napovedovanje zaostalih napetosti;XRD zaostale napetosti;laser shock peening;LSP;Almen intensity;prediction of residual stresses, xrd residual stresses;prediction of residual stresses;XRD residual stresses;
One of the key requirements for surface treatment processes in practical applications, is the ability to reproduce the same treatment using the same parameters. This is one of the problems often encountered in laser shock peening (LSP), because there is no direct method of control deployed, without ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
High-cycle fatigue enhancement of dissimilar 2017A-T451/7075-T651 Al alloy joint fabricated by a single pass FSW without any post-processing
Uroš Trdan, Damjan Klobčar, Laurent Berthe, Roman Šturm, Zoran Bergant
Izvirni znanstveni članek
Oznake: friction stir welding (FSW);dissimilar Al alloys;high-cycle fatigue enhancement;cleaner manufacturing technology;sustainable engineering;
This study investigates the microstructural, mechanical, high-cycle fatigue, and fracture behaviour of a dissimilar 2017A-T451/7075-T651 Al alloy joint produced by single-pass friction stir welding (FSW) without post-processing. Residual stress analysis revealed low tensile residual stresses in the ...
Leto: 2023 Vir: Fakulteta za strojništvo (UL FS)
Mitigating defects in directed energy deposited aluminium 5356 alloy through in-situ workpiece vibration
Mirza Imširović, Uroš Trdan, Damjan Klobčar, Drago Bračun, Aleš Nagode, Laurent Berthe
Izvirni znanstveni članek
Oznake: directed energy deposition (DED);in situ vibrations;residual stress reduction;surface quality improvement;gas porosity reduction;grain refinement;wire arc additive manufacturing;residual stresses;microstructure;homogenisation;
Mitigating defects in directed energy deposited aluminium 5356 alloy through in-situ workpiece vibration
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
New methodology of dynamical material response of dissimilar FSWed Al alloy joint under high strain rate laser shock loading
M. Ayad, Lucas Lapostolle, A. Rondepierre, C. Le Bras, S. Ünaldi, Črtomir Donik, Damjan Klobčar, Laurent Berthe, Uroš Trdan
Izvirni znanstveni članek
Oznake: friction stir welding (FSW);dissimilar al alloys;laser induced shock wave propagation;VISAR analysis;dynamic simulation;
This paper presents an innovative methodology of material characterization under high strain rate (order of 10$^7$s$^{–1}$) laser shock loading coupled with microstructural and mechanical material features. To that scope, experimental and simulation analyses have been conducted for Al alloys (AA7075 ...
Leto: 2022 Vir: Fakulteta za strojništvo (UL FS)
Modeling of multi-edge effects in the case of laser shock loadings applied on thin foils
M. Ayad, Pierre M. Lapostolle, A. Rondepierre, C. Le Bras, M. Scius-Bertrand, S. Ünaldi, Uroš Trdan, Y. Rouchausse, J. Grassy, T. Maillot, V. Lapoujade, C. Michel, Laurent Berthe
Izvirni znanstveni članek
Oznake: aluminijeve zlitine;laserski udarni valovi;numerične simulacije;Johnson-Cook model;aluminum alloys;laserski shock waves;numerical simulation;
This article presents the study of the shock wave propagation through aluminum alloys (pure aluminum and aluminum 2024-T3) produced by laser plasma using experimental and numerical tests. Water confinement regime interaction, pulse duration (7.2 ns), and power density (1–5 GW/cm$^2$) range correspon ...
Leto: 2022 Vir: Fakulteta za strojništvo (UL FS)
Št. zadetkov: 6
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