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Jurnal Tribologi
Scopus
ISSN 2289-7232 · Malaysian Tribology Society · 82 artikel di indeks
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Mechanical and tribological properties of FFF 3D-printed polymers: A brief review
In fused filament fabrication (FFF); the process of 3D printing using polymer-based materials; specialised and functional parts are designed and manufactured for use in engineering and medical industries. Recognizing the impact on the mechanical and tribological behaviour of different processing…
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Macroscopic tribological properties of thick concentrated polymer brush on rough steel under lubrication with ionic liquid
Concentrated polymer brush (CPB) is the polymer film with a structure that possesses greatly extended polymer chains densely grafted to substrate. CPB is known to swell in good solvents, which have high affinity for the polymer. Swollen CPB by a good solvent shows excellent micro-tribological…
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A 3-dimensional computational fluid-structure interaction analysis in the hip-joint prosthesis during solat (prayer) activity
Artificial hip joint (AHJ) hailed as the current best solution to solve the damage hip joint issues that can lead to permanent disability. This study investigates the performance of artificial hip joint during the salat activity under seven salat position loading condition by introducing the…
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Thermal stress analysis of the multi-disc friction clutches
The accurate thermal stresses estimation of any machine element that is subjected to high temperature gradient is considered as essential matter for the mechanical engineers to obtain a successful design. Friction clutches are subjected periodically to high thermal stresses during the beginning of…
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Past, present and future of tribology in Japan
The technology, engineering and science of tribology developed during the 1st Industrial Revolution in Europe were introduced to Japan after 1868 and learned in the following 80 years. After the establishment of JSLE in 1956, Japanese tribologists supported world top class products and quick growth…
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Study of instantaneous starvation at a finite-length line contact
Starvation phenomenon widely exists in the non-conforming contacts when high-viscosity lubricating oil or greases are used. However, most of the work focuses on the steady state starvation, and the phenomenon of instantaneous starvation is not well explored by scholars. This paper experimentally…
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Frictional property of a 3D-capillary-structured surface fabricated by selective laser melting
In this study, a self-oil-circulating structure, termed a 3D-capillary structure, has been proposed to improve the frictional properties of sliding elements. The 3D capillary structure can collect excessive lubricant from a sliding surface and resupply to the interface by capillary action…
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Fretting wear characteristics of AISI 1040 steel alloy
Most of the shrink fit joints, couplings, and fasteners of machine components are generally made up of AISI 1040 steel. These components are subjected to fretting wear due to vibrations induced by machine operation. Fretting wear test on AISI 1040 steel is performed with different normal loads in…
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Effect of silver coated gear train in space vehicle under ultra-high vacuum of 10-7 Torr
Gear train systems used in the lunar environment should be able to endure limiting conditions such as ultra-high vacuum with minimal energy dissipation. From this point of view, we have obtained the optimum thickness of a silver coating that can influence friction mechanisms of the gear and pinion…
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Fundamental study on functionality of synthetic sulfides: Evaluation of metal sulfides as solid lubricant
Replacement of exhaustible and harmful resources used as solid lubricants is required for sliding elements such as plain bearings. In particular, the substitution of lead containing in the lead bronze is considered an urgent task. Therefore, in this study, attention was focused on metal sulfides…
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An experimental compression test of lubricants with direct measurement of lubricant pressure build-up
The influence of workpiece surface topography on friction, lubrication and final surface quality in metal forming operations is well known. This is especially the case when liquid lubricants are applied in situations where increased workpiece surface roughness facilitates the lubricant entrapment…
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Tribological properties of surface modified Ti-6Al-4V alloy under lubricated condition using Taguchi approach
Surface modification technique is important to enhance the tribological properties of titanium alloy grade 5 (Ti-6Al-4V). One of the surface melting techniques is tungsten inert gas (TIG) torch welding to produce similar results to the costly high power laser technique. The substrate alloy was…
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Application of full factorial design to study the tribological properties of AA6061-B4C and AA6061-B4C-MoS2 composites
This study statistically analyzes the tribological properties of AA6061-10 wt. % B4C mono composite and AA6061-10 wt.% B4C-7.5 wt. % MoS2 hybrid composite. The tribological behavior of the composites was studied at atmospheric conditions using a pin-on-disk tribo-tester. The tribological…
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Enhancing the tribological properties of biodegradable oils by organic additives under extreme conditions
This study explores the enhancement of the lubricating characteristics of certain biodegradable oils such as palm-oil (Elaeis guineensis L.) and coconut oil (Cocos nucifera), relative to non-additive mineral lubricant under extreme conditions; the viscosity was measured according to ASTM D445…
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Tribological evaluations of modified RBD palm olein-based lubricants in machining processes
Metalworking fluids from palm oils are desirable as the alternative to mineral oil that possesses negative effects on humans and environment. The aim of this study is to evaluate the tribological and machining performances of the modified refined, bleached and deodorized (RBD) palm olein-based…
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Parametric investigations of short length hydro-dynamically lubricated conical journal bearing
Due to the growing need for compact size fluid film bearings, efforts are being made to explore the performance of hydro-dynamically lubricated short length conical journal bearing. The combined radial and axial load carrying features of these bearings emerge as a better option to replace the two…
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The influence of cutting fluid conditions and machining parameters on cutting performance and wear mechanism of coated carbide tools
The present study investigates the effect of various cutting fluid cooling conditions and machining parameters on tool flank wear (VB) and surface roughness (Ra) in hard turning of AISI D2 steel using multilayer coated carbide inserts. Response surface methodology with Face centered composite…
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Effect of slip/no-slip on finite slider bearing using non-Newtonian micropolar fluid
In this paper, the modified Reynolds equation of finite slider bearing lubricated with micropolar fluid is numerically solved for the computational aspects of the bearings. The finite difference scheme has been employed to solve the governing equations. The effect of micropolar parameter and slip…
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Tribological behavior of electroless Ni-B-Mo coatings under dry and lubricated conditions and corrosion resistance in 3.5% NaCl solution
The present work investigates the deposition and tribological behavior of electroless Ni-B-Mo coatings under dry and lubricated conditions. The effect of heat treatment (350°C, 400°C and 450°C for 1 hour) on the coating microstructure and tribological behavior is observed. In as-deposited condition…
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Effects of velocity-slip and viscosity variation in hydrostatic step-seal
In this work, a new scratch test method - multi-pass dual-indenter scratch test - is used to estimate the abrasion resistance of C120 steel. This steel is used in the moulds manufacture for injection of plastic materials filled with glass fibres that are very abrasive. Rp3 tools steel, with…