Results 71 to 80 of about 424,793 (298)
On the velocity-strengthening behavior of dry friction
, 2014 The onset of frictional instabilities, e.g. earthquakes nucleation, is intimately related to velocity-weakening friction, in which the frictional resistance of interfaces decreases with increasing slip velocity.
Bar-Sinai, Yohai +3 more
core +1 more source
Multi-physics simulation of friction stir welding process [PDF]
, 2009 Purpose: The Friction Stir Welding (FSW) process comprises of several highly coupled (and non-linear) physical phenomena: large plastic deformation, material flow transportation, mechanical stirring of the tool, tool-workpiece surface interaction ...
Hamilton, R., Li, Hongjun, Mackenzie, D.
core +1 more source
Advanced Engineering Materials, EarlyView.This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
AIP Advances, 2018 Lateral force microscopy (LFM) is an established technique to assess friction forces at the nanoscale. Nanoindentation followed by unidirectional sliding (NUS) is also used to evaluate friction forces at the micro/nanoscale.
F. G. Echeverrigaray +8 more
doaj +1 more source
A 2-D asymmetric exclusion model for granular flows
, 1999 A 2-D version of the asymmetric exclusion model for granular sheared flows is presented. The velocity profile exhibits two qualitatively different behaviors, dependent on control parameters.
C Josserand +5 more
core +3 more sources
Advanced Engineering Materials, EarlyView.This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani +2 more
wiley +1 more source
High-temperature wear performance and mechanism of NM400/NM500 mining machinery steels
工程科学学报, 2019 The friction and wear behavior of NM400 and NM500 steels in the temperature range from room temperature to 300℃ were investigated, including the formation of interface oxide, wear surface morphology, and microstructures.
HUANG Xia-xu +3 more
doaj +1 more source
Surface Characterization and Tribology Behavior of PMMA Processed by Excimer Laser
Chinese Journal of Mechanical Engineering, 2023 Polyoxymethylene methacrylate (PMMA) is widely used in ophthalmic biomaterials. Misuse of PMMA in extreme environments is likely to damage the ocular surface and intraocular structures.
Dong Qin +4 more
doaj +1 more source
Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann +3 more
wiley +1 more source