Objetivo Research developments include:manufacture of the test coupons and polymet rods in the main aero bearing steels, M50 and Tl, and also the new carburising steel M50 NiL;design, manufacture and commissioning of component handling and beam scanning systems, including a dedicated ball manipulator for the uniform implantation of balls;successful implantation of all test coupons and polymet rods with the metallic species chromium and tantalum and dual implantation of yttrium plus nitrogen, each at 4 different dosage levels;corrosion testing of implanted test coupons using potentiometric polarisation, open circuit potential versus time, and cyclic voltametry. The results of the corrosion tests show a significant improvement in the corrosion resistance of M50, Tl and M50 NiL materials implanted with chromium and tantalum;characterisation of the implantation regimes using Rutherford backscattering (RBS) and nuclear reaction analysis (NRA) techniques.The main achievements include:development of an ion implantation technique for the implantation of bearing components with chromium, tantalum and yttrium plus nitrogen;testing of implanted components to assess and quantify benefits gained;proving the capability of maintaining these benefits under severe service conditions;identification of possible nondestructive techniques which can be used as quality assurance tools for ion implanted bearing components.Consequently, the service life and reliability of gas turbine bearings has been improved by increasing their corrosion resistance and their rolling contact fatigue life. Ámbito científico natural scienceschemical sciencesinorganic chemistrytransition metals Programa(s) FP1-BRITE - Multiannual research and development programme (EEC) in the fields of basic technological research and the applications of new technologies (BRITE), 1985-1988 Tema(s) Data not available Convocatoria de propuestas Data not available Régimen de financiación CSC - Cost-sharing contracts Coordinador RHP Bearings Ltd Aportación de la UE Sin datos Dirección Northern Road NG24 2JF Newark Reino Unido Ver en el mapa Coste total Sin datos Participantes (3) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo Danfysik A/S Dinamarca Aportación de la UE Sin datos Dirección 4040 Jyllinge Ver en el mapa Coste total Sin datos NATIONAL LABORATORY FOR ENGINEERING AND INDUSTRIAL TECHNOLOGY Portugal Aportación de la UE Sin datos Dirección Estrada do Paco do Lumiar 22 1649-038 LISBOA Ver en el mapa Coste total Sin datos Rolls Royce plc Reino Unido Aportación de la UE Sin datos Dirección 65 Buckingham Gate SW1E 6AT London Ver en el mapa Coste total Sin datos