Objective "Magnesium alloy castings are used in the fabrication of helicopter gearbox components because the advantages in terms of specific weight / mechanical properties and suitability for the casting process. However, improvements in helicopter performance by the use of magnesium have been offset by corrosion problems. More corrosion resistant alloys and improved protective finishing systems are needed. Besides, these systems must conform to environmental regulations and the use of hazardous substances. Both chemical and electrochemical methods are used for the modification of magnesium surfaces. Despite the many ways to form chromate free chemical conversion layers on the surface of Mg alloys, there are also significant gaps for real implementation and commercial significance of these developments and their use in specific applications such as the protection of cast Mg alloys used in helicopters.TECNALIA and PROMET consortium partners own proprietary formulations for the surface treatment of non-ferrous alloys with already demonstrated properties for the protection of Mg alloys. In the case of TECNALIA, the starting point will be an own patented process for conversion coating of Mg alloys based on phosphates and permanganates chemistry. In the case of PROMET several proprietary formulations based respectively on CrIII, cerium and manganese chemistries will constitute the starting point. A selenious acid self-healing process for brush-application will be also tested. This project aims to readjust and optimize these baseline treatments to extend their application to the helicopter transmission MgWE43 and EV31A Mg casting alloys as required by the addressed topic, fulfilling all the demanded requirements by the aerospace industry." Fields of science natural scienceschemical sciencesinorganic chemistrytransition metalsnatural scienceschemical sciencesinorganic chemistryalkaline earth metalsengineering and technologymaterials engineeringcoating and filmsengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftrotorcraft Programme(s) FP7-JTI - Specific Programme "Cooperation": Joint Technology Initiatives Topic(s) JTI-CS-2011-3-ECO-01-039 - Development of a chromate 6+ free chemical surface treatment for cast magnesium alloys protection Call for proposal SP1-JTI-CS-2011-03 See other projects for this call Funding Scheme JTI-CS - Joint Technology Initiatives - Clean Sky Coordinator FUNDACION TECNALIA RESEARCH & INNOVATION Address Parque cientifico y tecnologico de gipuzkoa, paseo mikeletegi 2 20009 Donostia-san sebastian (gipuzkoa) Spain See on map Region Noreste País Vasco Gipuzkoa Activity type Research Organisations Administrative Contact José Luis Viviente (Dr.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data Participants (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all Protection des Métaux SAS France EU contribution € 60 000,00 Address Rue gracchus babeuf 4 93130 Noisy le sec See on map Activity type Private for-profit entities (excluding Higher or Secondary Education Establishments) Administrative Contact Jacques Halut (Mr.) Links Contact the organisation Opens in new window Website Opens in new window Other funding No data
