Results 21 to 30 of about 1,275,740 (271)

Verification of micro pitting occurring process considering frictional force at the gear tooth mesh surface of power transmission gears

open access: yesNihon Kikai Gakkai ronbunshu, 2015
To reduce weight and improve efficiency of the power transmission, the gears must be miniaturized and lubricant viscosity must be lower. However, these changes will bring about augment of contact pressure and severe lubricating condition.
Yuko YASUE   +3 more
doaj   +1 more source

Role of rare earth elements on the improvement of corrosion resistance of micro-alloyed steels in 3.5 wt.% NaCl solution

open access: yesJournal of Materials Research and Technology, 2021
The effects of rare earth (RE) addition on the corrosion behavior of micro-alloyed steels in 3.5 wt.% NaCl solution were investigated elaborately through electrochemical tests and material characterization analyses. Results showed that the corrosion rate
Shen Zhang   +4 more
doaj   +1 more source

Numerical modelling of micro‐pitting of gear teeth flanks

open access: yesFatigue & Fracture of Engineering Materials & Structures, 2003
ABSTRACTA two‐dimensional computational model for simulation of contact fatigue of gear teeth flanks is presented. In the model, it is assumed that the initial crack of length 0.015 mm is initiated at the surface due to previous mechanical or heat treatment of the material as well as a consequence of the running in process.
Fajdiga, Gorazd   +3 more
openaire   +2 more sources

Test-pitting

open access: yes
A live to broadcast performance for the Radiophrenia festival. Their collaborative test-pitting practice gestures towards the archaeological process of delving into a site of enquiry to reveal layers gathered over time—fragmented artefacts, traces of
Scrutton, Nichola, Strachan, Zoe
core   +6 more sources

Diagnostics and prognostics with acoustic emission, vibration and spectrometric oil analysis for spur gears; a comparative study [PDF]

open access: yes, 2005
Whilst vibration and spectrometric oil analysis for gear fault diagnosis are well established, the application of AE to this field is still in its infancy.
Mba, David   +2 more
core   +6 more sources

Pulsed Laser-Induced Micro-Pits: As Bone Stabilizers

open access: yesPhysics Procedia, 2011
AbstractMechanical interlocking concept is a crucial criteria for osseointegration which is based on micro-porous surface structures. Several surface treatment methods have been used to modify the surface morphology of titanium implants in order to increase the effective interfacial area.
Çelen S., Efeoglu C., Özden H.
openaire   +3 more sources

Sequence diversity and potential recombination events in the coat protein gene of Apple stem pitting virus. [PDF]

open access: yes, 2011
The variability of the Apple stem pitting virus (ASPV) coat protein (CP) gene was investigated. The CP gene of ten virus isolates from apple and pear trees was sequenced.
Paweł Siedlecki   +9 more
core   +2 more sources

Improvement of Lubrication Performance by Micro Pit Surfaces

open access: yesTribology Online, 2008
This paper describes an investigation on improvement of lubrication performance by incorporating micropits on a surface with special focus on the arrangement of the micropits. Water lubricated experiments were conducted using a test rig in which parallel conformal sliding motion was produced between mechanical seal faces.
Yagi, Kazuyuki   +3 more
openaire   +3 more sources

Analytical Elastostatic Contact Mechanics of Highly-Loaded Contacts of Varying Conformity

open access: yesLubricants, 2020
In applications requiring high load carrying capacity, conforming contacting pairs with a relatively large contact footprint are used. These include circular arc, Novikov, and Wildhaber gears found, for example, in helicopter rotors.
Patricia M. Johns-Rahnejat   +2 more
doaj   +1 more source

Effects of rare earth metals on microstructure, mechanical properties, and pitting corrosion of 27% Cr hyper duplex stainless steel

open access: yesReviews on Advanced Materials Science, 2022
This research focuses on the addition of low-cost rare earth metals (REMs) to improve the comprehensive properties of hyper duplex stainless steels (DSSs).
Wang Hang   +6 more
doaj   +1 more source

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