Results 31 to 40 of about 1,275,740 (271)

Synergistic effects of micro-abrasion–corrosion of UNS S30403, S31603 and S32760 stainless steels [PDF]

open access: yes, 2007
In this study, the synergistic effects of abrasion and corrosion on UNS S30403, S31603 and S32760 stainless steels have been investigated using a micro-abrasion test rig.
J.O. Bello   +5 more
core   +1 more source

Understanding pitting corrosion behavior of AZ91 alloy and its MAO coating in 3.5% NaCl solution by cyclic potentiodynamic polarization

open access: yesJournal of Magnesium and Alloys, 2022
The pitting corrosion behavior of AZ91 alloy before and after micro-oxidation treatment in 3.5% NaCl solution was investigated by cyclic potentiodynamic polarization (CPDP) and optical and SEM observations of corroded surfaces at different polarization ...
Yuxiang Liu   +3 more
doaj   +1 more source

Investigation on particle assisted through-mask electrochemical etching of micro pit array

open access: yesThe International Journal of Advanced Manufacturing Technology, 2022
Abstract Microstructures are applied in various fields to improve the friction and lubrication of mechanical components. Through-mask electrochemical etching (TMEE) has shown good feasibility in machining microstructures array. However, the machining precision of microstructures gradually decreases with increasing etching depth in TMEE ...
Liqun Du   +6 more
openaire   +1 more source

Pitting Corrosion of Steel Induced by Al2O3 Inclusions

open access: yesMetals, 2017
To study the effect of Al2O3 inclusions on pitting corrosion in steel, our researchers utilized industrial pure iron as the raw material with the addition of a proper amount of pure aluminum powder to form Al2O3 inclusions.
Qing Liu   +4 more
doaj   +1 more source

Pitting damage levels estimation for planetary gear sets based on model simulation and grey relational analysis [PDF]

open access: yes, 2011
The planetary gearbox is a critical mechanism in helicopter transmission systems. Tooth failures in planetary gear sets will cause great risk to helicopter operations.
Gu, Fengshou   +3 more
core   +3 more sources

Mathematics Model of the Question of Micro-Pits Image with Direction-Uniformity Distribution and Area Scrambling Micro-Pits Image Design Methods Based on Regular Graphics Arrangement [PDF]

open access: yesAdvanced Materials Research, 2013
Mathematical model including design variables, constraint conditions and target functions is raised on the basis of problem description. Using the mathematical model, area scrambling micro-pits image design methods are presented. The methods can generate square area scrambling micro-pits image based on square-aligned-array arrangement, square area ...
Hong Cai Wang, Yang Wang
openaire   +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

Research on Characteristic of Hydrodynamic Bearing with the Surface Micro-pit

open access: yesJixie chuandong, 2021
Taking the hydrodynamic bearing with surface micro-pits as the research object, a mathematical model of oil film characteristics is established based on the flow balance of the micro-pits, and the static and dynamic characteristics and stability parameters of the bearing are obtained with the depth and area of the micro-pits.
Shaolin Zhang, Lingxue Li, Boqian Xia
openaire   +1 more source

Surface Damage Evaluation of Rolling Bearings Operating under Low Lambda Conditions

open access: yesTribology Online
Micro-pitting and wear phenomena were studied both experimentally and through simulation, focusing on the relationship between ball roughness and the lambda, Λ, value.
Izyan Iryani Mohd Yazid   +3 more
doaj   +1 more source

Pitting behavior of welded joint and the role of carbon ring in improving corrosion resistance

open access: yesMaterials & Design, 2019
Pitting behavior and its transition process to cracking were investigated after immersion at 180 °C in pure water and 3.5% NaCl solution for NiCrMoV welded joint manufactured by narrow gap submerged arc welding technology.
Tongjiao Chu   +3 more
doaj   +1 more source

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