Centre National De La Recherche Scientifique

Universite Dé Lorraine

Institut National Des Sciences Appliquees De Rennes

Arts

Institut National Des Sciences Appliquees De Rennes (insa De Rennes)

Ecole Nationale D Ingenieurs De Metz (enim)

National De La Recherche Scientifique (crns)

Thierry Gloriant

Frédéric Prima

Pascal Laheurte

Doina Gordin

Wafa Elmay

André Eberhardt

Etienne Patoor

The invention relates to a method for manufacturing a titanium alloy having superelastic properties and/or shape memory for biomedical use, which comprises the steps of: preparing an ingot by melting the various metals that form the desired alloy in a vacuum; optionally homogenizing the ingot in a vacuum by high-temperature annealing (higher than 900&#xb0; C.); first quenching; mechanical shaping (rolling, drawing, machining or the like); heat treatment for redissolution in beta phase beyond the beta transus temperature (until a second temperature and then maintaining same for a certain time); and second quenching; characterized in that said heat treatment phase is carried out in a gaseous atmosphere and also constitutes a surface treatment suitable for forming on the surface a layer of nitride, carbonitride, oxide, oxynitride or the like.

Method for manufacturing a titanium alloy for biomedical devices

According to a thermomechanical treatment process for a titanium alloy including between 23 and 27% niobium in atomic proportion, between 0 and 10% zirconium, and between 0 and 1% oxygen, nitrogen and/or silicon, the following steps are performed:

Method for the thermomechanical treatment of a titanium alloy, and resulting alloy and prosthesis

Growing community of inventors

Mouaze, France

Thierry Gloriant