TY - GEN A1 - Belgroune, Ahlam A1 - Alhussein, Akram A1 - Aissani, Linda A1 - Zaabat, Mourad A1 - Obrosov, Aleksei A1 - Verdy, Christophe A1 - Langlade, Cécile T1 - Effect of He and N2 gas on the mechanical and tribological assessment of SS316L coating deposited by cold spraying process T2 - Journal of Materials Science N2 - In this study, simulation and experimental methods were used to investigate the influence of cold spray conditions on AISI 316L stainless steel coatings. The effect of both helium and nitrogen gases used was investigated. The temperature, particle sizes of spraying powder, and distance from the nozzle throat to the impinging point were estimated by using the Kinetics Spray Solutions GmbH software. The 316L stainless steel (SS) coatings were examined by X-ray diffraction, Scanning Electron Microscopy and Energy Dispersive X-Ray Microanalysis. The tribological behavior was evaluated under different loads (2 N and 5 N) in dry conditions. It was found that the nitrogen and helium propellant gas with high speed and fine particles led to produce good coatings with dense microstructures. From the nanoindentation experiments, the Young's modulus and hardness of the SS 316L samples were enhanced of about 8% with helium due to the high particle velocity. It was shown that the wear resistance of SS 316L produced with helium was higher than that of the standard SS 316L coatings. The coatings produced with helium revealed lower friction coefficient (0.65) and wear rate (6.9 × 10–4 mm3/Nm) under 2 N applied load than that obtained nitrogen. It was also found that the SS 316L cold sprayed by helium with dense structure presents high hardness and good tribological performance that can be suggested for several applications. Y1 - 2022 UR - https://link.springer.com/article/10.1007/s10853-022-06950-1#article-info U6 - https://doi.org/10.1007/s10853-022-06950-1 SN - 1573-4803 VL - 57 IS - 8 SP - 5258 EP - 5274 ER - TY - GEN A1 - Belgroune, Ahlam A1 - Aissani, Linda A1 - Alhussein, Akram A1 - Zaabat, Mourad A1 - Obrosov, Aleksei A1 - Rtimi, Sami T1 - In Vitro Corrosion and Wear Investigation of Multifunctional TiAlMoN Sputtered Coatings on Cold-Sprayed SS316L T2 - ACS Applied Engineering Materials N2 - Although TiAlN has been thoroughly studied, there is still an ongoing demand for developing new-based TiAlN films with enhanced protection efficiency for a long lifetime and high load-bearing capability linked to friction and corrosion mechanisms. This work aims to present the effect of Mo content by studying the structural tribo-mechanical, wettability, and corrosion behaviors in TiAlMoN coatings deposited by magnetron sputtering on cold-sprayed stainless steel 316L substrates. TiAlMoN coatings showed a dense columnar structure with the coexistence of titanium and molybdenum nitrides, and TiN (200) preferred orientation changed to TiN(111) with increasing Mo content. The surface energy of the TiAlMoN coatings decreased gradually with the increase in Mo content. The TiAlMoN coating containing 16.09 atom % Mo possesses the highest hardness and Young’s modulus (29.5 and 334.5 GPa, respectively) and the maximum H/E and H3/E2 of 0.092 and 0.237, respectively. Formations of tribolayer oxides reduced the friction and enhanced the wear resistance of TiAlMoN coatings in atmospheric conditions and reached the minimum values of 0.3 and 0.849 × 10–6 mm3/N, respectively, at 16.09 atom % of Mo under 5 N load charge. Corrosion examination in simulated seawater revealed that TiAlMoN coating-coated SS316L exhibited a significant positive shift of about −16 mV in corrosion potential with a notable reduction in corrosion current density (1.41 nA/cm2), confirming the improved corrosion performance. The combination of both cold spray and magnetron sputtering techniques for producing this kind of component is shown to have great potential in processing applications. KW - Magnetron sputtering KW - Cold spray KW - TiAlMoN coating KW - Wettability KW - Tribo-mechanical properties KW - Corrosion resistance Y1 - 2024 UR - https://pubs.acs.org/doi/10.1021/acsaenm.3c00672 U6 - https://doi.org/https://doi.org/10.1021/acsaenm.3c00672 SN - 2771-9545 VL - 2 IS - 2 SP - 345 EP - 359 ER -