Durable lubricant-infused anodic aluminum oxide surfaces with high-aspect-ratio nanochannels
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Deformation, Wear and Microstructural Evolution of Nano-structured Pearlite Under Repeated Contact Sliding
Refinement of lamellar spacing down to a few nano-meters in pearlitic steels offers a unique combination of high strength and toughness. The present work pertains to the tribological response of nano-structured pearlitic steels with varying lamellae spacing under repeated frictional sliding using a conical diamond tip. The wear response has been qu...
Tribological response and microstructural evolution of nanostructured bainitic steel under repeated frictional sliding
Nanostructured bainitic steels have tremendous potential to be used in structural applications e.g. as rail materials. Strength and toughness in nanostructured bainite can be easily tailored by controlling the lath thickness of bainitic ferrite plates (BF) along with the morphology and volume fraction of retained austenite (RA). However, the wear r...
Deformation, Wear and Microstructural Evolution of Nano-structured Pearlite Under Repeated Contact Sliding
Refinement of lamellar spacing down to a few nano-meters in pearlitic steels offers a unique combination of high strength and toughness. The present work pertains to the tribological response of nano-structured pearlitic steels with varying lamellae spacing under repeated frictional sliding using a conical diamond tip. The wear response has been qu...
Wear damage and effects of graphene-based lubricants/coatings during linear reciprocating sliding wear at high contact p...
The present study reports on the 'wear damages' caused at inner surfaces (and sub-surfaces) of extruded zircaloy-4 tube specimens (as half cylinders) during interactive linear reciprocating sliding against outer surfaces of D2 steel half cylinders for different durations (up to 120 s) at high contact pressures (of similar to 1 GPa) in the absence/p...
Tribological response and microstructural evolution of nanostructured bainitic steel under repeated frictional sliding
Nanostructured bainitic steels have tremendous potential to be used in structural applications e.g. as rail materials. Strength and toughness in nanostructured bainite can be easily tailored by controlling the lath thickness of bainitic ferrite plates (BF) along with the morphology and volume fraction of retained austenite (RA). However, the wear r...
Wear damage and effects of graphene-based lubricants/coatings during linear reciprocating sliding wear at high contact p...
The present study reports on the 'wear damages' caused at inner surfaces (and sub-surfaces) of extruded zircaloy-4 tube specimens (as half cylinders) during interactive linear reciprocating sliding against outer surfaces of D2 steel half cylinders for different durations (up to 120 s) at high contact pressures (of similar to 1 GPa) in the absence/p...
Micro-magnetic and microstructural characterization of wear progress on case-hardened 16MnCr5 gear wheels
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The evaluation of wear progress of gear tooth flanks made of 16MnCr5 was performed using non-destructive micro-magnetic testing, specifically Barkhausen noise (BN) and incremental permeability (IP). Based on the physical interaction of the microstructure with the magnetic field, the micro-magnetic characterization allowed the analysis of changes of...
Tribologie du Ti-6AI-4V et d'un revêtement DLC en fretting : applications au contact tige/col dans les prothèses de hanc...
L’utilisation d’un col modulaire lors de la pose d’une prothèse totale de hanche introduit une nouvelle interface, entre la tige et le col, qui est susceptible de s’endommager par fretting lors de la marche. L’alliage Ti–6Al–4V est très largement utilisé pour les tiges et les cols. Cependant, les contacts Ti–6Al–4V / Ti–6Al–4V présentent un frottem...
Modeling and simulation in tribology across scales : An overview
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This review summarizes recent advances in the area of tribology based on the outcome of a Lorentz Center workshop surveying various physical, chemical and mechanical phenomena across scales. Among the main themes discussed were those of rough surface representations, the breakdown of continuum theories at the nano- and microscales, as well as multi...
