Study of Superficial Layers Obtained by Selective Transfer in the Friction Couples

Ilie, Filip

doi:10.15406/ipcse.2016.02.00048

Cited by 1 publication

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Depending on the couple of materials that take part in the friction process, and depending on the friction conditions, the mechanism of layer formation (film) servowitte on the friction surfaces may be diverse. 1,2 The servowitte layer (film) is off the polymerized protective layer and it is formed as a result of the energy flow, which appears in the friction process. A couple of materials that best meet these requirements are the bronze/steel couple lubricated with technical glycerin because this lubricant realizing much more easily than other lubricants the selective transfer regime.…”

Section: Forming Mechanism Of the Selective Layer (Servowitte)mentioning

confidence: 99%

“…The polymerization film is formed from the free radicals of organic substances occurring in the tribo-destruct process of the technical glycerin, avoiding the direct contact of the metal surfaces and decreases the contact real pressure. 1,6,7 Reducing the contact real pressure as a result of the selective dissolution of one thin superficial layer leads to the formation of the so-called servowitte layer on the friction surfaces. This layer has the property of providing the deformation processes an agglomeration of dislocations to a degree similar, with the one from the malleable materials and, by this, protects the layer against destruction.…”

Section: Forming Mechanism Of the Selective Layer (Servowitte)mentioning

confidence: 99%

“…In literature, 1–5 it was shown that for this type of frictional couple, the servowitte film on the friction surfaces is formed as a result of decomposition of the copper melt (which is a solid solution). At lower temperatures, the technical glycerin facilitates the deformation through shear (displacement) in the diffusion process.…”

Section: Forming Mechanism Of the Selective Layer (Servowitte)mentioning

confidence: 99%

“…This reduces the work consumption and the time consumed during the maintenance period. 1 Phenomena favorable for the above-mentioned friction, that arises due to tribo-destruction of the lubricants, are caused by the interaction of the substances, that are formed at the tribo-destruction and metal.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Rheological behavior of the lubricants favoring the formation of thin layers by selective transfer in the frictional couples

Ilie

2018

Proceedings of the Institution of Mechanical Engineers, Part J:

Self Cite

View full text Add to dashboard Cite

During the friction process of certain materials and in the presence of some adequate lubricants (technical glycerin), the wear phenomenon manifests as a material transfer from an element of a frictional couple on the other, in the contact areas (forming a selective layer), and therefore, can function in conditions of selective transfer. This phenomenon lasts until it reaches an optimal thickness, and after that, the transferred layer may return totally or partially to the initial element. In the contact points of the frictional couples that function with the selective transfer, several physical–chemical processes take place that favor the phenomenon. An important role in the functioning of the frictional couples with a selective transfer is rheological behavior that it has the lubricant. This paper analyzes the behavior and some of the rheological properties of the technical glycerin in the frictional couples what functioning with the selective transfer, technical glycerin being the lubricant that contributes sure, to the triggering of this phenomenon.

show abstract

Section: Forming Mechanism Of the Selective Layer (Servowitte)mentioning

confidence: 99%

Section: Forming Mechanism Of the Selective Layer (Servowitte)mentioning

confidence: 99%