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An experimental investigation of piston skirt scuffing: a piston scuffing apparatus, experiments, and scuffing mechanism analyses

Wear, 2004
Abstract Piston skirt/cylinder bore scuffing is one of the main failure mechanisms affecting the life of automotive engines. A piston scuffing apparatus that simulates the relative motion between the piston and the cylinder liner of a typical engine has been designed and constructed to investigate scuffing mechanisms and determine the conditions ...
H S Cheng
exaly   +2 more sources

Temperature and Scuffing

Tribology Transactions, 1993
An important component of most scuffing models is the concept of a critical temperature at which the lubricant film weakens to such an extent that a significant rise in friction coefficient occurs. This then causes a further rise in contact temperature and positive feedback ensues.
P M Cann, H A Spikes
exaly   +2 more sources

A review of scuffing models

Tribology Letters, 1996
The mechanism of wear known as scuffing has been a research topic of great interest for many years. However, the question of how scuffing is initiated and the factors that contribute to its occurrence are still poorly understood. In general, it can be said that scuffing manifests itself as the sudden failure of lubricating films in mechanical equipment
G W Stachowiak
exaly   +2 more sources

Microstructural evolution during scuffing of hardened 4340 steel—implication for scuffing mechanism

Tribology International, 2005
Microstructural changes occurring during scuffing failure in hardened 4340 steel were studied with a block-on-ring test rig using a step-loading test protocol. Tests were interrupted before, during, and after scuffing. Both surface and sub-surface changes in the original tempered microstructure were characterized by scanning electron microscopy ...
O O Ajayi, G R Fenske
exaly   +2 more sources

Experimental Investigations of Steel Scuffing and Coatings for Scuffing Prevention

open access: yes
To improve the lifetime, enhance engine performance, decrease emissions, and inhibit tribological failures of fuel injection system components, the component materials need to resist scuffing under conditions of high temperatures, high pressures, and low viscosity fuel lubrication.
Jacques, Kelly Joan
openaire   +3 more sources

The Effect of Lubricant Traction on Scuffing

Tribology Transactions, 1994
This paper presents the results of a disc machine gear simulation investigating the influence of lubricant traction characteristics and formulation on the load at which scuffing occurs. Scuffing theories in general link the onset of scuffing to the amount of heat generated in the contact and the authors hypothesized that reduced heat generation with ...
A. Jackson   +2 more
exaly   +2 more sources

A Model for Scuffing Prediction

open access: yes, 2010
A correct prediction of scuffing failures is not easy. Several models have been developed by a number of authors but none can be applied with a certain degree of reliability under any conditions. In this work a simplified model for scuffing prediction is proposed.
CIULLI, ENRICO   +5 more
openaire   +2 more sources

Scuffing evaluation of fully formulated environmentally acceptable lubricant using barrel-on-disc technique

open access: yesTribology International, 2021
<p>Scuffing evaluation is challenging due to the catastrophic nature of this failure mode. In this paper, a new scuffing test method was designed for evaluating the scuffing capacity of fully formulated industrial oils.
Reza Bayat, Arto Lehtovaara
exaly   +2 more sources

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