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Development of alumina forming ods ferritic superalloys as new biomaterials for surgical implant (ALUSI)

Objective

The aim of this project is to develop aluminum forming alloys (Fe-Cr-Al-Y203) with improved wear resistance as new biomaterials for surgical implants (hip/knee). The proposal is based on their unique capability to develop a fine but hard, dense, and very well adherent alpha-alumina layer by thermal oxidation. The starting material is a commercial alloy designed for high temperature applications. Thus this project gives priority to optimize its processing, in order to get the correct texture (low Young's Modulus and small grain size), the composition, and the thermal oxidation conditions. Mechanical characterization of developed alloys includes tensile, compressive, fatigue, and wear tests simulating joint wearing conditions. Bio-compatibility is assessed by corrosion experiments in simulated human fluids and cell culture on solid specimens. The influence of wear debris and ions release on the cell culture will also be investigated.

Coordinator

CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Address
8,Avenida De Gregorio Del Amo 8
28040 Madrid
Spain

Participants (6)

ASSOCIACION INSTITUTO DE BIOMECANICA DE VALENCIA
Spain
Address
Avda. Juan De La Cierva 24
46980 Campamento/paterna
COMMISSION OF THE EUROPEAN COMMUNITIES
Italy
Address
Via Enrico Fermi 1
21020 Ispra
ISTITUTO ORTOPEDICO RIZZOLI
Italy
Address
Via Di Barbiano 1-10
40136 Bologna
METALLWERK PLANSEE GMBH
Germany
Address
23,Siebenbürgerstraße 23
86983 Lechbruck
SURGIVAL CO S.A.
Spain
Address
Avda. Leonardo Da Vinci 12-14
46980 Campamento/paterna
TECHNICAL UNIVERSITY OF CLAUSTHAL
Germany
Address
42,Robert Koch Straße 42
38678 Clausthal-zellerfeld