Feasibility study of magnetic fluid support and lubrication behaviors on micro magnet arrays

Magnetic fluid (MF) is a kind of magnetically controlled colloid, which may serve as an active medium in support and lubrication systems. This paper presents a design of micro magnet arrays for MF lubrication associated with fluid/gas supports. By using electrochemical machining and electroplating t...

Full description

Saved in:
Bibliographic Details
Published in:Tribology international 2020-10, Vol.150, p.106407, Article 106407
Main Authors: Li, Jingbing, Dai, Qingwen, Huang, Wei, Wang, Xiaolei
Format: Article
Language:English
Subjects:
Arrays
Austenitic stainless steels
Bearing strength
Coefficient of friction
Electrochemical machining
Electroplating
Feasibility studies
Friction reduction
Load carrying capacity
Lubrication
Lubrication systems
Magnetic field
Magnetic fluid
Magnetic fluids
Substrates
Support
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Magnetic fluid (MF) is a kind of magnetically controlled colloid, which may serve as an active medium in support and lubrication systems. This paper presents a design of micro magnet arrays for MF lubrication associated with fluid/gas supports. By using electrochemical machining and electroplating techniques, thick micro magnet arrays with sheet and ring cells were fabricated in 316 stainless steel substrate. The support and lubrication behaviors of MF absorbed on the magnet arrays were tested and compared. Results confirm that MF fixed on the magnet arrays possesses a certain load carrying capacity. Due to the supporting capacity, low friction coefficient of 0.003 can be achieved. Under high load condition, the magnetic surfaces only show friction reduction at the higher speeds. •Magnetic fluid is magnetically controlled colloid served as lubricant.•It can generate a magnetostatic force under an external magnetic field.•Micro magnet arrays were fabricated on a rubbing surface.•Support capacity of magnetic fluid covered on the magnet arrays was investigated.•Ultra low friction coefficient can be achieved due to the magnetic fluid support.
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2020.106407