Showing papers in "Wear in 2011"

TL;DR: In this paper, a simple model combining Wenzel and Cassie-Baxter theories with simple 2D roughness profile analysis was proposed to investigate the roughness influence on contact angle measurements and applied to real homogeneous anisotropic surfaces.

TL;DR: In this article, the effects of surface texturing on improving the tribological properties of sliding assemblies are analyzed, and the other influences of surface topography are mentioned in this paper, and various methods of their description are compared.

TL;DR: In this article, the wear mechanisms of tungsten carbide (WC) and polycrystalline diamond (PCD) drills when drilling carbon fiber reinforced plastics (CFRP) stacked on top of titanium (Ti) were investigated.

TL;DR: In this paper, the effect of laser-textured surfaces on the tribological properties under a point ball-on-flat contact configuration was investigated in a pinon-disk friction machine at speeds from 0.015 to 0.75 m/s.

TL;DR: In this paper, a 3D transient finite element (FE) model is presented to solve both the normal and the tangential contact problems simultaneously for arbitrary geometry, and the explicit time integration scheme employed renders it intrinsically suitable for transient analysis of high frequency dynamic processes.

TL;DR: In this article, the friction and wear behavior of NiCrBSi/WC-Ni composite coating sliding against Si3N4 ball at an elevated temperature of 500°C was evaluated.

TL;DR: In this article, the track technical state can be assessed with the aid of axle box acceleration measurements, which can indicate short track defects like squats, welds with poor finishing quality, insulated joints, corrugation, etc.

TL;DR: In this paper, the authors present recent progress, and consequently develop a comprehensive understanding about the tribological behavior of MAX Phases and their composites, and propose a way of classifying the different tribofilms to understand the complex tribological behaviour of these solids over a wide range of different experimental conditions.

TL;DR: An innovative technique, friction stir processing (FSP) was employed for the fabrication of Al/Al2O3 nano-composite surface layer on an Al alloy substrate as mentioned in this paper.

TL;DR: In this article, a series of tests on friction and wear performance of pure copper rubbing against carbon strip under electric current have been carried out on a modified pin-on-disc friction-and wear tester.

TL;DR: In this article, the effects of oxidizer concentration, pH and slurry flow rate on the material removal rate (MRR) in chemo-mechanical polishing of Si (1.0.0) wafers were investigated.

TL;DR: In this article, the in situ TiB 2 reinforced Al 6063 composites were synthesized through the exothermic reaction between Al-10%Ti and Al-3%B master alloys, which were used in the ratio of 1:2 respectively in Al-6063 matrix alloy.

TL;DR: In this paper, a process primarily based on carburization and successive low-temperature austempering, was proposed for the generation of low temperature bainitic microstructure in the surface layer (∼2.5mm in thickness) of low carbon steel.

TL;DR: In this paper, a computational tool that is able to predict the evolution of the wheel profiles for a given railway system, as a function of the distance run, is presented, based on a commercial multibody software to study the railway dynamic problem and a purpose-built code for managing its pre and post-processing data in order to compute the wear.

TL;DR: In this article, multiwall carbon nanotubes were coated with copper using an electroless two-step sensitization-activation method in order to improve the interfacial strength of the metal matrix.

TL;DR: In this article, a solid state surface engineering technique for forming a composite surface layer on aluminum to improve surface hardness and wear resistance without sacrificing the ductility and conductivity of the bulk was presented.

TL;DR: Evaluated tribocorrosion behaviour of a low-carbon CoCrMo alloy suggests that the proteins in the serum lubricant assist in the generation of a protective layer against corrosion during sliding, and highlights the need of adequate methodology/guidelines to compare the results from different test systems and translating in solving the practical problems.

TL;DR: In this paper, both single and double scratch tests for optical glass BK7 were performed on a nano-indenter and the scratch morphology, material removal volume and scratch depth were analyzed with applied normal load and scratch separation distance.

TL;DR: In this paper, two white cast irons with different chromium contents 13.81% and 24.41% were solidified unidirectionally using an indentation technique on transversal and longitudinal sections of the M 7 C 3 carbides.

TL;DR: In this paper, the performance of hot dip aluminium-silicium and electroplated zinc alloy coatings for hot forming applications has been evaluated according to their friction and wear behavior.

TL;DR: In this article, a combinational approach is proposed to incorporate surface treatment (electrochemical boriding) in coordination with the use of nano-colloidal lubricant additives.

TL;DR: In this paper, surface engineering techniques were compared to determine which best enhance the tribological performance of Ti-6Al-4V alloy and another alloy, 60Ni-40Ti.

TL;DR: In this article, the authors describe the wear mechanism and tool life when machining Hastelloy C-22HS with coated carbide, and the results indicated that PVD cutting tools performed better than CVD tools, in terms of tool life with current parameters.

TL;DR: The dry rolling/sliding wear behaviour of Si alloyed carbide free bainitic steel was evaluated in this paper, where 60SiCr7 spring steel samples were tested at different temperatures and sliding distances.

TL;DR: In this paper, the friction coefficient of Ni-based composites was investigated under different loads and speeds by conducting wear tests against a counterface of AISI 52100 ring using a ring-on-disk set up.

TL;DR: In this paper, the wear and RCF behaviour of several pearlitic and bainitic rail steels on a full scale test rig at voestalpine Schienen GmbH and also in several track tests is investigated.

TL;DR: In this paper, three different microstructure patterns, i.e., horizontal (0°), perpendicular (90°) and sloping at 45° to the cutting edge of the rake face, are generated by focused ion beam on three identical end mill cutters.

TL;DR: In this paper, the influence of surface wettability and interfacial energy on the coefficient of friction (f ) of tribopair surfaces in aqueous environment was investigated using a tribotester.

TL;DR: In this paper, a methodology for the simulation of degradation of rail profiles in switches and crossings (S&C) is presented, which includes simulation of dynamic vehicle-track interaction considering stochastic variations in input data (such as wheel profile, train speed and wheel-rail friction coefficient), simulation of wheelrail contacts accounting for nonlinear material properties and plasticity, and simulation of wear and plastic deformation in the rail during the life of the S&C component.