Solid lubricant nanofilms on laser textured surface. Friction and wear
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RAPOPORT, L.. Solid lubricant nanofilms on laser textured surface. Friction and wear. In: Materials Science and Condensed Matter Physics, 13-17 septembrie 2010, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2010, Editia 5, p. 126.
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Materials Science and Condensed Matter Physics
Editia 5, 2010
Conferința "Materials Science and Condensed Matter Physics"
Chișinău, Moldova, 13-17 septembrie 2010

Solid lubricant nanofilms on laser textured surface. Friction and wear


Pag. 126-126

Rapoport L.
 
Holon Institute of Technology
 
 
Disponibil în IBN: 16 aprilie 2021


Rezumat

Texturing of contact surfaces has a remarkable influence on their tribological properties. Various texturing techniques such as machining, ion beam texturing, etching techniques and laser texturing are employed for preparation of micrometer-sized valleys. Modern modification of surface layers for friction applications combines surface texturing and filling of textured layers by solid lubricant MoS2/WS2 or other compositions. In this work Laser Surface Texturing (LST) was compared with Pulsed Air Arc Treatment (PAAT) was used to texture the surface layers. The textured surfaces were obtained and then filled by solid lubricant. Some burnishing methods were used to deposit solid lubricant films on steel surfaces. The tribological properties of solid the lubricant films on textured surfaces were compared with the behavior of solid lubricant films burnished on ground surfaces. The wear rate and wearability of solid lubricant films were assessed. It was shown that application of PAAT and filling of micro-reservoirs by solid lubricant particles provide longevity under dry friction conditions, Long wear life of burnished layers on LST steel surfaces is apparently provided by preservation of thin solid lubricant film around the bulges and by supply of solid lubricant from the dimples to the contact surface. The increase in the wear life of solid lubricant film on LST surfaces is explained also by the high adhesion and density of solid lubricant film burnished on steel surfaces.