| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Zekonyte, Jurgita
University of Portsmouth
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2022Investigating the Effects of H2O Interaction with Rainscreen Façade ACMs During Fire Exposurecitations
- 2021The effect of temperature on the erosion of polyurethane coatings for wind turbine leading edge protectioncitations
- 2021Wear of 17-4 PH stainless steel patterned surfaces fabricated using selective laser meltingcitations
- 2020Characterization of Nano-Mechanical, Surface and Thermal Properties of Hemp Fiber-Reinforced Polycaprolactone (HF/PCL) Biocompositescitations
- 2020Planning for metal additive manufacturingcitations
- 2020Structure and mechanical properties of Ce-La alloys containing 3- 10 wt. % Lacitations
- 2016Titanate nanotubes for reinforcement of a poly(ethylene oxide)/chitosan polymer matrixcitations
- 2016Titanate nanotubes for reinforcement of a poly(ethylene oxide)/chitosan polymer matrixcitations
- 2016Titanate nanotubes for reinforcement of a poly(ethylene oxide)/chitosan polymer matrixcitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatings: nanoscale friction and wearcitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatings:nanoscale friction and wearcitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatingscitations
- 2014Nanomechanical assessment of human and murine collagen fibrils via atomic force microscopy cantilever-based nanoindentationcitations
- 2014WS2 nanoparticles - potential replacement for ZDDP and friction modifier additivescitations
- 2014Frictional properties of self-adaptive chromium doped tungsten-sulfur-carbon coatings at nanoscalecitations
- 2009Angle resolved XPS characterization of cationic polyacrylamidescitations
- 2006Defect formation and transport in La0.95Ni0.5Ti0.5O3-δcitations
- 2005Interfacial effects on the electrical properties of multiferroic BiFeO3/Pt/Si thin film heterostructurescitations
- 2005Tailoring of the PS surface with low energy ionscitations
- 2004Structural and chemical surface modification of polymers by low-energy ions and influence on nucleation, growth and adhesion of noble metals
- 2003Etching rate and structural modification of polymer films during low energy ion irradiationcitations
- 2003Mechanisms of argon ion-beam surface modification of polystyrenecitations
Places of action
| Organizations | Location | People |
|---|
article
Wear of 17-4 PH stainless steel patterned surfaces fabricated using selective laser melting
Abstract
The recent developments in additive manufacturing (AM) are providing unprecedented opportunities in various fields, including the fabrication of advanced materials for tribological applications. The present work describes the results of an exploratory study focused on the analysis of 17-4 PH steel surfaces obtained using selective laser melting (SLM). In particular, the study includes the analysis of baseline (as-produced) and textured steel surfaces. Surface texturing comprises hexagonal prism structures (with or without dimples) arranged in a honeycomb pattern with 50 µm or 100 µm gap spacing. Starting from the minimum printing size enabled by the 3D printing platform, various textures are prepared by scaling up the characteristic dimensions of the prisms up to 500%. The obtained surface patterns are characterized (qualitatively and quantitatively) using a non-contact computerized numerical control (CNC) measuring system. The coefficient of friction (COF) was investigated using a Ball-on-Disk configuration using bearing steel balls as counterparts. For a fixed sliding speed, different contact loads and sliding radii were considered, while the tests were carried out in either dry or lubricant-impregnated conditions. The results of wear tests in both dry and lubricated conditions indicated that the baseline samples are provided with lower COF compared to the textured ones. For the latter, neither the gap spacing nor the presence of dimples led to significant variations in the COF. However, in lubricated conditions, the values of the COF for baseline and textured surfaces were closer and much smaller. In particular, the results provide clear indications regarding reducing the gap between prisms, which had a beneficial effect on the COF in lubricated conditions. Similarly, sensitivity to dimples was quite remarkable, with a reduction in the COF of about 30% when the larger gap spacing between the prisms was used.