Showing papers in "Wear in 2013"

TL;DR: In this paper, three different types of natural fibers (nettle, grewia optiva and sisal) were incorporated into PLA polymer to develop laminated composites using a hot compression technique.

TL;DR: In this paper, the authors used interrupted microscopy measurements to investigate the evolution of transfer film development for an ultra-low wear polytetrafluoroethylene (PTFE) nanocomposite.

TL;DR: In this article, the analysis of tool wear mechanisms in finishing turning of Inconel 718, one of the most used Ni alloys, both in wet and dry cutting, is presented.

TL;DR: In this article, the effects of cryogenic cooling on tool-wear rate and progressive tool wear were examined by comparing the new findings from cryogenic machining with results obtained from minimum quantity lubrication (MQL) and dry machining conditions.

TL;DR: In this paper, the effects of CNT content, sliding speed and applied load on the wear behavior of composites were investigated using scanning electron microscopy (SEM) and the morphologies of the wear surfaces were investigated.

TL;DR: In this article, the degradation of CoCrMo alloys using existing tribocorrosion concepts was evaluated and it was shown that wear accelerated corrosion due to mechanical removal of the passive film during sliding is a major contribution to the overall degradation.

TL;DR: In this article, the effect of coating material on tool wear was investigated for milling of the 718 nickel super alloy in micro conditions and the results showed that the cutting tools coated with AlTiN, TiAlN+AlCrN, and AlCrN displayed better performances compared to those coated with TiAl N+WC/C and DLC.

TL;DR: In this paper, friction stir processing (FSP) was used to produce copper-graphite surface composites and five tools with different pin profile were employed in order to achieve a comprehensive dispersion.

TL;DR: In this paper, the morphology, composition and structure of tribo-layers were thoroughly investigated for the worn surfaces and subsurfaces were thoroughly analyzed for the morphology and composition of the tribo layers.

TL;DR: In this article, the authors examined contact failures of bearings from wind turbine gearboxes and observed the localized microstructural change, known as white etching area (WEA), in order to guide the development of lasting solutions to a pressing problem.

TL;DR: In this paper, the wear rate, wear pattern and wear mechanism of two kinds of nanocomposite coatings, (nc-AlTiN)/(a-Si 3 N 4 ) and (ncAlCrN/(a)-Si 3N 4 ), in dry and MQL conditions were investigated.

TL;DR: In this article, the effect of temperature on the wear rate and friction coefficient of a high strength alloy steel (Super-CMV) in gross sliding fretting in air was investigated.

TL;DR: In this paper, the wear resistance in dry rolling-sliding of nano-structured steels is significantly superior to that of bainitic steels transformed at higher temperatures with similar hardness values.

TL;DR: In this article, aqueous dispersions of hexagonal boron nitride (h-BN) nano-sheets were evaluated using a SiC ball sliding on a disk (Si wafer) arrangement.

TL;DR: Friction and wear behavior of Al6061 monolithic alloy and 1-wt% CNTs reinforced Al 6061 composite prepared through ball milling and spark plasma sintering was investigated in this paper.

TL;DR: In this paper, the effects of titanium dioxide additives on the lubricated friction and wear behavior of self-mated E52100 bearing steel were investigated using a reciprocating pin-on-disk apparatus.

TL;DR: In this paper, a study of the BUL and BUE formation mechanisms, their evolution and their influence on the dry turned aeronautical workpieces surface quality has been achieved.

TL;DR: In this paper, a new processing technique, friction stir processing (FSP), was used to incorporate SiC and MoS 2 particles into the matrix of an A356 Al alloy to form surface hybrid composite.

TL;DR: In this article, friction and wear of polyimides reinforced by carbon, glass and aramid fibers were studied and comparatively evaluated under dry sliding against sandpaper and steel rig as well as under three-body abrasive conditions.

TL;DR: In this article, the authors apply serial sectioning to map WEC networks in wind turbine gearbox bearings to elucidate the initiation mechanisms of white etching cracks (WECs).

TL;DR: In this paper, the performance of hybrid composites was investigated at room temperature, with the normal load of 0.65 mpa, 1.30 mpa and 3.25 mpa.

TL;DR: In this paper, the abrasive wear of three metallurgical structures with radically different hardnesses has been investigated for the same steel, and it was found that although the abrasion rates and wear coefficients are not very different for the three states, the mechanisms of ab rasion are quite different.

TL;DR: In this paper, the influence of the concentration of diffusible hydrogen, the magnitude of the contact load and the number of rolling cycles on the formation of white etching features (butterflies, WEA/WECs) was determined by a serial sectioning process.

TL;DR: In this paper, the authors investigated the sliding tribological behavior of TiAl matrix self-lubricating composites (TMSCs) containing silver against Si3N4.

TL;DR: In this paper, the authors describe the use of modern tool materials, ranging from powder metallurgical high speed steel to super hard materials such as polycrystalline cubic boron nitride and diamond, as cutting tools in the metal cut process.

TL;DR: In this article, the authors presented a computational study based on the linear Archard's wear law and finite element modeling (FEM) in order to analyze unlubricated sliding wear observed in typical pin on disc tests.

TL;DR: Experimental results showed that UHMWPE reinforced with micro- and nano-ZnO would improve the wear behaviour, and the weight loss due to wear for nano-zinc oxide/UHMW PE composites are lower compared to micro-ZNO/UhMWPE and pure UH MWPE.

TL;DR: In this article, the influence of conventional flood cooling and high pressure lubricant supply (wet conditions), cryogenic cooling with liquid nitrogen, and minimum quantity lubrication (MQL) were investigated in longitudinal external turning operations.

TL;DR: Friction and wear tests were performed to investigate effects of sliding velocity and normal load on tribological characteristics of a multi-layered diamond-like carbon (DLC) coating for machine elements.

TL;DR: In this article, the tribological properties of rhenium-doped inorganic fullerene-like MoS2 nanoparticles were studied in poly alpha olefin oil, and compared to 2H-MoS2 platelets.