Essays about: "tribological properties"

Showing result 21 - 25 of 43 essays containing the words tribological properties.

1. 21. Mechanical and Thermal Characterisation of Novel UHMWPE Composites for Total Joint Arthroplasty

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Julian Somberg; [2019]
   Keywords : UHMWPE; Nanocomposites; DSC; Fracture Toughness; Wear;

   Abstract : Total joint arthroplasty surgeries are known to have a high success rate but the longevity of the implants still acts as a limiting factor. Ultrahigh molecular weight polyethylene is the material of choice for the implant bearing surfaces due to its excellent clinical and tribological performance. READ MORE

3. 22. Friction and wear study of lean powder metallurgy steel in a lubricated sliding contact

   University essay from Uppsala universitet/Tillämpad materialvetenskap

   Author : Caroline Lejonklo; [2019]
   Keywords : Lean steel; Powder metallurgy PM ; Powder metallurgy steel PM steel ; Friction; Wear; Sliding contact; Lubricated; Porosity; Tribology; Adhesive wear; Abrasive wear; Gear; Gear tooth; Particles; Polyalphaolefin 8 PAO 8 ; Contact pressure; Density; Light optical microscopy LOM ; Scanning electron microscopy SEM ; Energy-dispersive X-ray spectroscopy EDS ; Vertical svanning interferometry VSI ; Pin on disc; Pin-on-disc;

   Abstract : A fairly new technology used to produce metallic components is powder metallurgy (PM). Among the advantages with this technique are decreased cost of production for complex-shaped parts, new alloys are made possible, reduced end processing, less material loss, and vibrational damping effects. READ MORE

4. 23. High Temperature Tribology in Hot Stamping

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Evan Kurnia; [2019]
   Keywords : high temperature tribology; hot stamping; acoustic emission; condition monitoring; hardfacing;

   Abstract : Many automotive components are made of Al-Si coated ultra-high strength boron steel (UHSS) and are produced by hot stamping process. In this process, the workpiece is heated to an austenitizing temperature and is then formed and quenched simultaneously between the tools to achieve the desired shape and high strength. READ MORE

5. 24. Microstructural, Mechanical and Tribological Studies of Ti-6Al-4V Thin Plates Produced by EBM Process

   University essay from Högskolan Dalarna/Materialteknik

   Author : Onimisi Calistus Sanni; [2019]
   Keywords : Additive manufacturing AM ; Electron beam melting EBM ; Mechanical properties; Tribological behaviour; Microhardness; Micro tensile; Thin sections; Ti-6Al-4V;

   Abstract : The titanium alloy, Ti-6Al-4V, is vastly studied and used in many applications because it has a transformation microstructure, which can be tailored for apt properties that are consistent up to 500°C. Compared to conventional steels, this alloy favours certain applications due to its high specific strength, hardenability, corrosion resistance, biocompatibility and weldability. READ MORE

6. 25. Tribological Performance of Hygrothermally Aged UHMWPE Hybrid Composites

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Luca Palmeira Belotti; [2018]
   Keywords : UHMWPE; aging; polymers; tribology;

   Abstract : Stricter environmental regulations and trend of decreasing cost and increasing operational efficiency are the driving forces for the improvement of the tribological performance in many different industries. For example, in the case of hydropower plants, there has been increasing research carried out to achieve oil-free stations, which would substitute the oil-based lubricants with environmentally accepted lubricants or water. READ MORE