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Tribological Behaviour of CO-CR-MO and Uhmwpe the Components of Intervertebral Disc Prosthesis
(Universitatea ”Dunărea de Jos” din Galați, 2006)
The Intervertebral Disc Prostheses consist of a modular system and his function is based on low intervertebral friction. As a result of friction forces acting to the spine structures, the intervetebral disc prostheses can ...
Prediction of Wear of Acetabulum Inserts Due to Multiple Human Routine Activities
(Universitatea ”Dunărea de Jos” din Galați, 2006)
It is difficult to predict the quantitative and qualitative aspects of the wear of the components that allow relative motion due to several factors. First, the prosthetic parts in contact experience a wide spectrum of ...
Wear Prediction of Hip Endoprostheses
(2007)
The total hip prostheses can be considered as medical-mechanical devices with established failure. The large domain of common activities induces a wide spectrum of loadings in contact prosthetic parts. The contact conditions ...
Dynamics of Hip Artificial Joints Wear
(Universitatea ”Dunărea de Jos” din Galați, 2008)
In the present paper the authors try to evaluate, based on the results obtained from experimental and numerical previous studies, the wear evolution in the components of a Total Hip Prosthesis (THP), during the service ...
On Tribological Behaviour of Thermo-Chemical Treated Steels after Thermo-Magnetic Treatments
(Universitatea ”Dunărea de Jos” din Galați, 2008)
The paper presents an analysis on two grades of steel, subjected to nitrocarburized or nitrided thermo-chemical treatment after different thermomagnetic treatments. Based on the concept of tribosystem, pairs of steel rollers ...
Failure of a Total Knee Prosthesis Tibial Tray Due to the Fatigue Wear
(Universitatea ”Dunărea de Jos” din Galați, 2006)
Some studies report the failure of a tibial insert of knee prostheses due to the subsurface cracking and delamination wear [1]. The present study starts by analysing retrieved total knee prosthesis revealing the loss of a ...
Wear Behaviour of the AL7175 Alloy under Different Bulk Stress States
(Universitatea ”Dunărea de Jos” din Galați, 2008)
In what concerns the stresses involved in the process, most wear tests (namely those in the pin on disc and the pin on plate configurations) are usually solely concerned with the stress state in the contact originated by ...
Characterizing the Wear Particles of Intervertebral Disc Prosthesis and their Biological Response
(Universitatea ”Dunărea de Jos” din Galați, 2008)
Prosthetic debris is the leading factor causing prosthetic loosening and requiring revision surgery. Wear debris is formed over time with any prosthesis. Factors determining disc arthroplasty survivability are similar to ...
Tribological Characteristics and Formation of Subsurface Structures of Cast FE-CR-C Alloys with Different Content of Copper, under Sliding Friction
(Universitatea ”Dunărea de Jos” din Galați, 2009)
Effect of copper contents (0%, 0.4%, and 14%) and modes of heat treatment on initial structure of Fe-Cr-C alloys (C~1.2%, Cr = 17…19%) and subsurface structure of friction layers and tribological characteristics of these ...
The Presence of Hydrogen as Wear Environment for the Mechanical System of the Continuous Casting Equipment
(UDJG, 2010)
In the last years the continuous casting of the steel has a tremendous development. In the same time, the casting steel quality requirements become higher. The hydrogen as environment of the casting diminishes the steel ...