Journal ArticleDOI
Contact and Rubbing of Flat Surfaces
TLDR
In this article, the authors compared the deduced dependence of the experimental observables on the load with the experimental evidence and concluded that the most realistic model is one in which increasing the load increases both the number and size of the contact areas.Abstract:
The interpretation of certain phenomena occuring at nominally flat surfaces in stationary or sliding contact is dependent on the assumed distribution of the real area of contact between the surfaces. Since there is little direct evidence on which to base an estimate of this distribution, the approach used is to set up a simple model and compare the deduced theory (e.g., the deduced dependence of the experimental observables on the load) with the experimental evidence. The main conclusions are as follows. (a) The electrical contact resistance depends on the model used to represent the surfaces; the most realistic model is one in which increasing the load increases both the number and size of the contact areas. (b) In general, mechanical wear should also depend on the model. However, in wear experiments showing the simplest behavior, the wear rate is proportional to the load, and these results can be explained by assuming removal of lumps at contact areas formed by plastic deformation; moreover, this particular deduction is independent of the assumed model. This suggests that a basic assumption of previous theories, that increasing the load increases the number of contacts without affecting their average size, is redundant.read more
Citations
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Influence of ion implantation and overlay coatings on various physico-mechanical and wear properties of stainless steel, titanium and aluminium
TL;DR: In this paper, the data on the wear behavior of 304 stainless steel, commercial grade titanium and commercial grade aluminium without and with different surface treatments, namely ion implantation of boron and nitrogen and overlay coatings of titanium carbide and nitride.
Journal ArticleDOI
Role of transient water pressure in quarrying: A subglacial experiment using acoustic emissions
TL;DR: In this article, a 12 cm high granite step with a crack in its stoss surface was installed at the bed of Engabreen, Norway, and acoustic emission sensors monitored crack growth events in the step as ice slid over it.
Journal ArticleDOI
Study on nanocrystalline Cr2O3 films deposited by arc ion plating: II. Mechanical and tribological properties
Tie-Gang Wang,Tie-Gang Wang,Tie-Gang Wang,Dawoon Jeong,Yanmei Liu,Qimin Wang,Qimin Wang,Srinivasan Iyengar,Solveig Melin,Kwang Ho Kim +9 more
TL;DR: In this article, the influence of substrate bias voltage on the microhardness, adhesive strength, friction coefficient, and wear rate of AIP Cr2O3 films deposited on AISI 304 stainless steel substrates was investigated systematically.
Journal ArticleDOI
Effect of Primary and Eutectic Mg2Si Crystal Modifications on the Mechanical Properties and Sliding Wear Behaviour of an Al–20Mg2Si–2Cu–xBi Composite
TL;DR: In this article, the microstructure evolution, tensile, impact, hardness, and sliding wear properties of an Al-20Mg2Si-2Cu in situ composite treated with different Bi contents were investigated.
Journal ArticleDOI
An Enhanced Deep Learning-Based Fusion Prognostic Method for RUL Prediction
TL;DR: A novel deep learning based fusion prognostic method for remaining useful life (RUL) prediction of engineering systems that strategically combines the advantages of bidirectional long short-term memory (BLSTM) networks and particle filter method and meanwhile mitigates their limitations.
References
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Book
The friction and lubrication of solids
Frank Philip Bowden,David Tabor +1 more
TL;DR: Tabor and Bowden as mentioned in this paper reviewed the many advances made in this field during the past 36 years and outlined the achievements of Frank Philip Bowden, and reviewed the behavior of non-metals, especially elastomers; elastohydrodynamic lubrication; and the wear of sliding surfaces.
Journal ArticleDOI
The Nature of the Static and Kinetic Coefficients of Friction
TL;DR: In this article, the transition between static and kinetic conditions when stationary metal surfaces are set into motion is determined by measuring the energy that has to be given to one of the bodies to start it moving.
Journal ArticleDOI
On the Empirical Law of Adhesive Wear
J. T. Burwell,C. D. Strang +1 more
TL;DR: In this paper, the wear of rubbing steel surfaces as a function of load, distance of travel, and hardness under controlled conditions was measured and the effect of all factors except adhesion was analyzed.
Journal ArticleDOI
Metallic transfer between sliding metals: an autoradiographic study
Ernest Rabinowicz,David Tabor +1 more
TL;DR: In this article, a study of the friction and metallic transfer between sliding metal surfaces in the absence and in the presence of boundary lubricant films has been conducted, showing that the metallic transfer consists of a relatively small number of discrete particles and that the main function of a boundary lube is to reduce the amount of metallic interaction.
Journal ArticleDOI
Deformation of metals in static and in sliding contact
TL;DR: In this article, a detailed examination of the surface damage produced during sliding shows that metallic junctions are formed and sheared during the sliding process, and it is suggested that they are produced by a cold welding of the surfaces as a result of the high localized pressures developed at the points of real contact.