Objective
In this project, laser surface treatment processes have been developed that produce higher quality coatings for steam and gas turbine components, improving their resistance to erosion and corrosion.
PREVIOUS STUDIES ON SIMPLE FLAT SAMPLES HAVE SHOWN THAT SURFACE STRUCTURES AND COMPOSITIONS WITH UNIQUE PROPERTIES CAN BE PRODUCED BY LASER SURFACE-ALLOYING AND -CLADDING.
THE MAJOR OBJECTIVES OF THE PROJECT ARE TO FURTHER DEVELOP BOTH THE APPLICATION TECHNIQUES AND THE COMPOSITION AND STRUCTURE OF THE SURFACE ALLOYS TO ALLOW PARTS OF MORE COMPLEX SHAPE TO BE WELDED.
THE AIM OF THE RESEARCH IS TO IMPROVE THE CURRENT LIFETIME OF 100.000 AND 200.000 HOURS FOR STEAM AND GAS TURBINES RESPECTIVELY BY AT LEAST 50 % BY DEVELOPING SURFACE ALLOYS AND CLADDINGS WITH GREATER EROSION-, FATIGUE-, AND WEAR-RESISTANCE THAN THOSE CURRENTLY AVAILABLE. A FURTHER AIM IS TO OBTAIN AN INCREASED EROSION AND STRESS-CORROSION CRACKING RESISTANCE IN THE ORDER OF 50 % TOGETHER WITH A REDUCTION IN TEMPER EMBRITTLEMENT AND RESIDUAL STRESSES FOR COMPONENT SHAPE.
FOR NEXT GENERATION OF STEAM TURBINES DESIGNED FOR HIGHER EFFICIENCY AND GREATER ECONOMY, THE BLADE LENGTH OF THE LAST BLADES MUST BE INCREASED BY 30-35 % CORRESPONDING TO AN INCREASE BY 50 % AT THE STEAM PASSAGE SECTION WHICH NECESSITATES THE USE OF CLADDED TITANIUM ALLOY BLADES INSTEAD OF CLADDED STEELS. THE MINIMUM GOAL IS TO ACHIEVE THE SAME STATISTICAL LIFETIME OF THE TITANIUM BLADES AS CURRENTLY OBTAINED FOR THE SMALLER CLAD STEEL BLADES.
THE EMPHASIS WILL BE ON (I) THE FORMATION OF EROSION RESISTANT CLADDINGS ON STEEL AND TITANIUM SUBSTRATES FOR USE ON THE NEXT GENERATION OF STEAM TURBINES; (II) NON-EQUILIBRIUM SURFACE ALLOYING OF NICKEL BASED ALLOYS FOR GAS TURBINES AND (III) THE FORMATION OF AMORPHOUS SURFACE LAYERS ON ALUMINIUM SUBSTRATES TO IMPROVE BOTH THIR WEAR AND CORROSION RESISTANCE.
FOR THE LATTER PURPOSE, THE EFFECTIVENESS OF CO2, ND-YAG, COPPER VAPOUR AND EXCIMER LASERS IN PRODUCING THE DESIRED SURFACE ALLOYS WILL BE EVALUATED. IN ADDITION, NDT TECHNIQUES FOR QUALITY CONTROL WHICH ARE CURRENTLY USED FOR TESTING WILL BE ADAPTED FOR APLLICATION TO EVALUATION OF LASER PROCESSED SURFACES AND PROTOTYPE TESTING EQUIPMENT WILL BE DESIGNED.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences inorganic chemistry transition metals
- natural sciences chemical sciences inorganic chemistry post-transition metals
- engineering and technology materials engineering coating and films
- natural sciences physical sciences optics laser physics
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
38500 Volos
Greece
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.