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Modelling of Some Degradation Processes by Corrosion Fatigue of Metallic Surfaces
(UDJG, 2011)
Based on the well known fatigue corrosion effects, the mechanical stress and the corrosive environment have a significant effect on the prediction of the lifespan of the equipments that work in corrosive environment, two ...
Kinematic and Dynamic Aspects of Damped Collision Between Two Metallic Balls
(UDJG, 2011)
Recently, a new model of the behaviour of a collision has been proposed by Flores. The model describes the behaviour during the impact of a complete range of metallic materials, from the soft to the hard ones. The present ...
The Application of CRN Coating in Sliding Pairs under Lubrication Conditions
(UDJG, 2011)
This work revealed the results of the impact of the formed surface layer CrN and the surfaces layer CrN-steel 46Cr2 “ring” structure. The sliding pairs worked under conditions of lubricating the friction area with Lotos ...
The Influence of Nano-Particle Additive to Lubricating Oils on the Structure and Properties of Friction Surfaces
(UDJG, 2011)
The article considers the influence of the additive in the lubricating oils Cermet, on tribological properties of a friction pair «cast iron – chrome», which is typical for the cylinder-piston unit of engines. It is shown ...
Theoretical Evaluation and Experimental Measuring of the Friction Forces from the Sealing of the Rod for the Hydraulic Cylinders
(UDJG, 2011)
The paper presents some technical problems specific to the mobile sealing, used in the construction of hydraulic cylinders, and the theoretical and experimental methods which allow to determine the friction forces which ...
Experimental Preliminary Research Regarding Normally and Tangentially Loaded Contacts
(UDJG, 2011)
The purpose of this paper is to determine the contact area for a contact between a steel sphere and a sapphire disk loaded normally and tangentially, using laser profilometry. For this, was used an experimental device ...
Roughness as Small Surface Defects and Microstructure Changes in the Fatigue Process
(UDJG, 2011)
Examinations in detail using X-radiation diffraction of the dislocation substructure in fine-grained S355JR steels plate specimen fatigued with constant amplitude were carried out to investigate the correlation between the ...
Hydrogen Wear of the Slab Continuous Casting Guiding Tribosystems
(UDJG, 2011)
The steel continuous casting equipment consists of a set of technical systems which, tribologically, may be regarded as tribological systems. The process model contains input –output, command and control parameters. Both ...
Technological Providing of Surface Layer Wear Resistance of Machine Components
(UDJG, 2011)
The article describes the problem of assuring the wear resistance of the friction surface layers based on the control of the geometrical, physical and mechanical properties to be formed after the machining process.
A Simple Device for Modelling Bioarticular Joint Friction
(UDJG, 2011)
In this paper a simple device for modelling bioarticular friction is presented. The experimental device serves to simulate the movement as it would take place in a knee joint. Key components of the experimental device are ...