Using molecular-dynamics simulation, we study nanoindentation and scratching in an Fe (1 0 0) surface. We find an indentation hardness of 20 GPa in good agreement with experiment and previous simulations. The length of the ...

Wear behavior of coatings has usually been described in terms of mechanical properties such as hardness (H) and effective elastic modulus (E*). Alternatively, an energy approach appears as a promising analysis taking into ...

Because of their mechanical properties, metals are the most widely used materials as orthopaedic implants. However they cannot provide a natural bond with the mineralized bone and they also release metallic particles due ...

Cryogenic treatments are increasingly used to improve the wear resistance of various steel alloys by means of transformation of retained austenite, deformation of virgin martensite and carbide refinement. In this work the ...

Nanoscratching of ductile materials creates plastic zones surrounding the scratch groove. We approximate the geometry of these zones by a semicylinder with its axis oriented along the scratch direction. The radius and the ...

Hydroxyapatite (HA) is a bioactive calcium phosphate capable of enhancing the implant/bone connection improving osteoconductivity and osseointegration process. However, the HA presents mechanical properties limiting its ...

Environmentally compliant organic-inorganic hybrid coatings for efficient corrosion protection of metallic surfaces are alternatives to the current methods based on chromate passivation. In this context hybrids coatings ...