Results 21 to 30 of about 28,804 (233)

Study on Pitting Behavior of Welding Joint of Bimetal Composite Pipes in Suspended Sulfur Solution

open access: yesCrystals
Due to the severe corrosion environment, corrosion problems caused by sulfur deposition are one important reason for the failure of composite pipes in the long-term service process when Incoloy825/X65 bimetallic composite pipes are used in high-sulfur ...
Yuwei Sun   +5 more
doaj   +1 more source

Relation of tangential force and pitting limit at rolling-sliding contact surface under mixed lubrication condition

open access: yesNihon Kikai Gakkai ronbunshu, 2015
Design for pitting (surface crack initiated rolling fatigue wear) at rolling-sliding contact surface under mixed lubrication condition is based on the combination of maximum contact pressure (Hertzian stress) and lubrication condition (ratio of surface ...
Susumu MATSUMOTO
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Design of straight bevel gear for pitting resistance [PDF]

open access: yesFME Transactions, 2018
Based on the Tredgold geometric approximation, a transparent contact stress capacity model for straight bevel gears is presented. A bevel load factor is defined which provides a kinetic link between the physical bevel gear and virtual spur gear.
Osakue Edward E., Lucky Anetor
doaj  

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Efeito do método de preparo do solo na produtividade de Eucalyptus grandis x Eucalyptus urophylla em Neossolo Quartzarênico e Latossolo. Effect of soil preparation method in productivity of Eucalyptus grandis x Eucalyptus urophylla in Quartzarenic Neosol and Red Oxisol. [PDF]

open access: yesRevista do Instituto Florestal, 2013
O preparo de solo é uma das práticas mais antigas no cultivo de plantas. Atualmente, a subsolagem é o método mais difundido e utilizado em povoamentos florestais.
Rodrigo Eiji HAKAMADA   +3 more
doaj  

Exploitation of Hertz's contact pressures in friction drives

open access: yesResearch in Agricultural Engineering, 2006
The paper is intent on the applications of equations which describe the Hertz's surface pressures in friction drives. In the paper the reduced equations are derived, which are useful to the surface pressures calculation in friction drives when ball ...
D. Herák   +3 more
doaj   +1 more source

Corrosion Behavior and Passive Film Composition of Alloy 825 in High Temperature and High H2S-CO2 Containing Environment

open access: yesFrontiers in Materials, 2021
The effect of high temperature on corrosion behavior and passive film composition of Ni-based alloy 825 in H2S-containing environment was investigated by Confocal Laser Microscope (CLM), Scanning Electron Microscope (SEM), Energy Dispersive Spectrometer (
Zhe Feng   +6 more
doaj   +1 more source

Process‐Informed Analysis of As‐Built Metal Additive Surface Features

open access: yesAdvanced Engineering Materials, EarlyView.
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau   +5 more
wiley   +1 more source

The influence of various grease compositions and silver nanoparticle additives on electrically induced rolling-element bearing damage

open access: yesFriction
Leakage currents accelerate surface degradation of metal contacts via small scale arcing across lubricating films, but recent observations suggest that metallic nanoparticle additives in lubricants may be useful to improve contact performance.
Samuel Bond   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy