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 ...

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 ...

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 ...

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 ...

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 ...

Wastewater piping systems in urban agglomerations or industrial areas have problems with the wear and tear of equipment and water transport pipelines used. The problems are related to hydromechanics wear and corrosion ...

In this paper, thin TiCx films were coated by chemical vapour deposition method, and various duty cycles were carried out in order to observe the influence of this parameter on residual stress and tribology behaviours. ...

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 ...

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 ...

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 ...