Results 271 to 280 of about 844,277 (344)

Size distribution analysis of wear debris generated in HEMM engine oil for reliability assessment: A statistical approach

Measurement, 2019
Wear debris size distribution in lubricated system closely related to lubricant condition and wear process. In this work, a model has been developed to predict the wear severity with operation time.
Ashwani Kumar, S. Ghosh
semanticscholar   +1 more source

Wear Debris Shape Classification

2020
Wear debris is produced in all machines containing moving parts. Wear debris or particles separate from these moving parts because of close contacts and friction and are contained in oil in an oil-wetted system. Analysis of wear debris provides important information about the condition of a machine.
Mohammad Shakeel Laghari, Ahmed Hassan, Mubashir Noman   +2 more
openaire   +1 more source

Chemical Nature of Wear Debris

A S L E Transactions, 1985
Depending upon the mechanism of wear occurring within aircraft gas-turbine engines, different types of wear debris are expected to be produced in lubricating oils. A procedure was developed to identify the chemical nature of these wear species. The procedure involves filtration and solvent extraction techniques, followed by spectrometric analysis to ...
R. E. Kauffman, C. S. Saba, W. E. Rhine, K. J. Eisentraut   +3 more
openaire   +1 more source

An online wear debris monitor

Measurement Science and Technology, 1992
The design, construction and operation of a monitor for detecting metallic particulate contamination in lubricating oils is described. The principle of operation is that lubricating oil flows through a transducer coil, causing small changes in the inductance of a coil as any metallic particles pass.
H W Whittington, B W Flynn, G H Mills
openaire   +1 more source

Geometrical features of wear debris

Journal of Materials Science, 2005
Image analysis software was used to analyse the geometry of debris formed during the erosion of low-carbon steel by impinging solid particles. Depending on the two-dimensional aspect ratio (ratio between debris height and debris width), three different debris types could be distinguished.
Momber, AW, Wong, Yat
openaire   +1 more source

Wear Debris Formation and Agglomeration

Journal of Tribology, 1992
The hypothesis that one of the primary roles of an effective lubricant is to prevent wear particle agglomeration, thus reduce the plowing of the interfaces by the particles, and lower the frictional force, has been tested through a series of experiments and modeling.
S. Tu¨rker Oktay, Nam P. Suh
openaire   +1 more source

Effect of iron oxide debris on the reciprocating sliding wear of tool steels

Wear, 2019
The presence of wear debris in sliding contacts is often regarded as detrimental, since it can increase friction, induce abrasive wear, reduce actual lubricant film thickness and compromise lubrication systems.
M. M. O. Júnior, H. Costa, W. M. S. Júnior, J. Mello   +3 more
semanticscholar   +1 more source

Wear Mechanism of Artificial Joint Failure Using Wear Debris Analysis

Journal of Nanoscience and Nanotechnology, 2018
Aseptic loosening is one of the main failure modes in artificial joints. Significant information about the aseptic loosening is carried by the wear debris of the joints. In this paper, the wear debris acquired from the ultrahigh molecular weight polyethylene (UHMWPE) artificial joints is prepared and a systematic research is carried out to investigate ...
Zhang, Daoming, Liu, Hongtao, Wang, Jianmei, Sheng, Chenxing, Li, Zhixiong   +4 more
openaire   +3 more sources

Size and shape of biomaterial wear debris

Clinical Materials, 1994
A literature review of wear debris is presented. Included are debris retrieved at revision of total joint replacement and at autopsy, as well as debris produced in vitro in wear testers and joint simulators or otherwise fabricated for biological experiments.
J A, Savio, L M, Overcamp, J, Black
openaire   +2 more sources

Investigating UHMWPE wear mechanisms by decomposing wear debris distributions

Wear, 2011
Abstract The precise mechanisms involved in the wear of UHMWPE are poorly understood. Wear debris image analysis has proven useful in characterizing the mechanisms and performance of metal wear, but applying these techniques to UHMWPE may not be appropriate. In this study, debris was collected after UHMWPE pins were worn against counterfaces of three
K. Plumlee, C.J. Schwartz
openaire   +1 more source