On the Role of a ZDDP in the Tribological Performance of Femtosecond Laser-Induced Periodic Surface Structures on Titanium Alloy against Different Counterbody Materials

Lubricants

Dirk Spaltmann¹  Jörn Bonse¹  Nadine Slachciak¹  Iñigo Llavori²  Andrea Aginagalde²  JonJoseba Ayerdi²  Alaitz Zabala² 

[1] Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany;Surface Technologies, Mondragon University, Faculty of Engineering, Loramendi 4, 20500 Arrasate-Mondragon, Spain;

关键词: lubricant additives;    laser-induced periodic surface structures (LIPSS);    wear;    friction;   

DOI  :  10.3390/lubricants7090079

来源: DOAJ

【 摘 要 】

Laser-induced periodic surface structures (LIPSS, ripples) with ~500−700 nm period were produced on titanium alloy (Ti6Al4V) surfaces upon scan processing in air by a Ti:sapphire femtosecond laser. The tribological performance of the surfaces were qualified in linear reciprocating sliding tribological tests against balls made of different materials using different oil-based lubricants. The corresponding wear tracks were characterized by optical and scanning electron microscopy and confocal profilometry. Extending our previous work, we studied the admixture of the additive 2-ethylhexyl-zinc-dithiophosphate to a base oil containing only anti-oxidants and temperature stabilizers. The presence of this additive along with the variation of the chemical composition of the counterbodies allows us to explore the synergy of the additive with the laser-oxidized nanostructures.

【 授权许可】

Unknown