20.500.12556/RUL-134679 Differences in nano-topography and tribochemistry of ZDDP tribofilms from variations in contact configuration with steel and DLC surfaces In this work, we evaluated the effect of the counter-body material (the same or dissimilar) and contact configuration (moving or stationary body), at similar contact tribological conditions, on the tribochemical and nanotopography characteristics of adsorbed surface films. Zinc dialkyldithiophosphate (ZDDP), the best performing anti-wear additive, was used in self-mated steel/steel and DLC/DLC contacts, which were compared with mixed steel/DLC and DLC/steel contacts in 1-h and 6-h sliding tests. The macroscale (tribometer) and nanoscale (atomic force microscopy) friction, thickness, topography, and chemical (attenuated total reflection-Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy) properties of the tribofilms were studied. The results revealed unexpectedly large differences in all the studied tribofilm parameters; this is because all the tribofilms are completely different; this includes the chemical composition, which is known to have a crucial effect on the nano- and macro-scale tribological properties. These results clearly demonstrate that the surface material, additives, and common contact operating parameters, that is, pressure, velocity, and temperature, crucially affect the ZDDP tribofilm as well as the position of the moving or stationary surface within the contact, and the material of the moving/stationary bodies. dithiophosphate diamond-like carbon steels tribofilms tribochemistry nano-friction thickness topography dithiofosfat diamantu podoben ogljik jekla tribofilmi tribokemija nanotrenje debelina topografija true false true Angleški jezik Slovenski jezik Članek v reviji 2022-01-25 13:57:39 2022-01-25 13:57:43 2022-09-13 03:56:30 0000-00-00 00:00:00 2022 0 0 Str. 296–315 iss. 2 Vol. 10 Feb. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.92 2223-7690 10.1007/s40544-021-0491-7 88250627 RAZ_Coga_Lucija_2022.pdf RAZ_Coga_Lucija_2022.pdf 1 D7A896C5F62D345AEAF707B4B86402F7 4788c4c49e5410544f273cfd2f23f455a45f01c85ae1481cc1d48a8527f0a05a c76da8fa-7dde-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153245 https://link.springer.com/article/10.1007%2Fs40544-021-0491-7 1 303938c4-7dde-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153243 Fakulteta za strojništvo 0 0 0