Cel ONERA has completed the microstructural investigations on the 2650 type alloys tested in task 1. These results propose an interesting interpretation of the relationship between microstructure and creep properties as a function of chemical composition, more particularly in regard to Ag and Si contents. The main points of this study are: - the confirmation of the presence of an unknown phase, different from S', in the Ag containing alloys. - the creep behaviour seems to be more dependant upon the fineness of the precipitation than on its nature (X or S'), - considering their microstructure, it appears that the precipitation heat treatment of the medium Ag/medium Si alloy was not optimised. Improvements of the creep behaviour may certainly be obtained by modification of the thermomechanical treatment of these alloys.Developing a new aluminium alloy being fabricated by low cost conventional ingot metallurgy with higher specific properties, in particular creep resistance, than old existing alloys such as 2618 or 2219, at temperatures around 150 C and for durations of exposure greater than or equal to ten thousand hours, is the prime objective of this R & D work.This research, which will have significant positive consequences on many general engineering application using 2618 today, is absoluty required for the development of the new supersonic civil transport aircraft, as preliminary studies clearly indicate that, because of the requirements driven by the new noise and pollution regulations and the necessary economical viability of the new aircraft, existing alloys are not adequate.Apart the supersonic aircraft, which will constitute the main part of the strucure of, the developped alloy, available at a cost equal to the one of conventional metals corresponding today to the same applications, will be used for:-structural parts or aircraft and helicopter structures with an expected achievement of 10% weight saving-moving components of engines-general engineering applications, such as dies for plastic moulding, with an expected achievement of 50 to 100% increase of life time of the part. Dziedzina nauki natural scienceschemical sciencesinorganic chemistrypost-transition metalsnatural sciencesearth and related environmental sciencesenvironmental sciencespollutionengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftrotorcraftengineering and technologymaterials engineeringmetallurgy Program(-y) FP3-BRITE/EURAM 2 - Specific programme (EEC) of research and technological development in the field of industrial and materials technologies, 1990-1994 Temat(-y) 1.3.1 - Metals and metal matrix composites Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator AEROSPATIALE Wkład UE Brak danych Adres 12 RUE PASTEUR 92152 SURESNES Francja Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (10) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko BA Aluminium Ltd Zjednoczone Królestwo Wkład UE Brak danych Adres Kitts Green B33 9QR Birmingham Zobacz na mapie Koszt całkowity Brak danych British Aerospace plc Zjednoczone Królestwo Wkład UE Brak danych Adres B5502 Filton BS99 7AR Bristol Zobacz na mapie Koszt całkowity Brak danych DASSAULT AVIATION SA Francja Wkład UE Brak danych Adres 78 QUAI MARCEL DASSAULT 92214 SAINT-CLOUD Zobacz na mapie Koszt całkowity Brak danych Daimler-Benz Aerospace Airbus GmbH Niemcy Wkład UE Brak danych Adres Hünefeldstraße 1-5 28199 Bremen Zobacz na mapie Koszt całkowity Brak danych Defence Evaluation and Research Agency (DERA) Zjednoczone Królestwo Wkład UE Brak danych Adres GU14 6TD Farnborough Zobacz na mapie Koszt całkowity Brak danych ISTRAM - INST OF STRUCTURES & ADVANCED MATERIAL Grecja Wkład UE Brak danych Adres 57 Patron- Athinon 26441 PATRAS Zobacz na mapie Koszt całkowity Brak danych MBB GMBH Niemcy Wkład UE Brak danych Adres 8000 MÜNCHEN Zobacz na mapie Koszt całkowity Brak danych MIRTEC SA Grecja Wkład UE Brak danych Adres A INDUSTRIAL AREA OF VOLOS 38500 VOLOS Zobacz na mapie Koszt całkowity Brak danych Office National d'Études et de Recherches Aérospatiales (ONERA) Francja Wkład UE Brak danych Adres 29 avenue de la Division Leclerc 92322 Châtillon Zobacz na mapie Koszt całkowity Brak danych Pechiney Francja Wkład UE Brak danych Adres 10 place des Vosges 92048 Paris la Défense Zobacz na mapie Koszt całkowity Brak danych
