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Appears in:
Pages: 479-486
Publication year: 2009
ISBN: 978-84-612-7578-6
ISSN: 2340-1079

Conference name: 3rd International Technology, Education and Development Conference
Dates: 9-11 March, 2009
Location: Valencia, Spain

ALUMINIUM ALLOYS USED IN AIRCRAFT ENGINEERING. EXPERIMENTAL RESEARCH STUDIES

M. Smeada1, O.A. Pirnuta2, I.M. Dinescu3

1Henri Coanda Air Force Academy, Brasov (ROMANIA)
2Transilvania University, Brasov (ROMANIA)
3Mountain Training Centre, Predeal (ROMANIA)
The aircraft engineering in continuous development must take into consideration the requirements concerning the costs, performances or weight in selecting the materials that are to be used. Thus, in the case of ultrasonic aviation, in order to solve the problem of the heating of strength structure, there are chosen special alloys which resist at high temperatures or composite materials with resistance properties for a given weight, all of them being very interesting ones.
Concerning the aeronautical constructions, the essential element that has to be optimized, in the decreasing sense, is weight, which has, in this case, a cascade effect. Thus, a greater weight needs a lift surplus, which determines, at the same time, a greater head resistance, that is a greater fuel consumption, thus a greater weight, so that the cycle is repeated. Under these conditions, the weight is required to constitute a minimum. Other requirements and certain cheaper materials or a cheaper technology will have, as a consequence, a secondary character, so that some better solutions, even if they are more expensive, are preferred. The introduction of aluminium alloys in the aeronautical constructions has represented such a step at that particular moment when aluminium was a semi-precious metal, it could be obtained hard and it had not very good resistance properties. Throughout time, the alloys metallurgy has developed as well as the elaboration of alloys with satisfactory resistance properties so that the aluminium alloys are preferred to other materials.
The paper aims at practically applying the research activity concerning the use of aluminium alloys and improving their mechanical properties. The experimental tests carried out aim at modifying the hardness values of the aluminium alloys following some non-conventional heat treatments. The focus has also been laid on the influence of the alloying elements concentration upon the hardness while applying different heat treatments.
@InProceedings{SMEADA2009ALU,
author = {Smeada, M. and Pirnuta, O.A. and Dinescu, I.M.},
title = {ALUMINIUM ALLOYS USED IN AIRCRAFT ENGINEERING. EXPERIMENTAL RESEARCH STUDIES },
series = {3rd International Technology, Education and Development Conference},
booktitle = {INTED2009 Proceedings},
isbn = {978-84-612-7578-6},
issn = {2340-1079},
publisher = {IATED},
location = {Valencia, Spain},
month = {9-11 March, 2009},
year = {2009},
pages = {479-486}}
TY - CONF
AU - M. Smeada AU - O.A. Pirnuta AU - I.M. Dinescu
TI - ALUMINIUM ALLOYS USED IN AIRCRAFT ENGINEERING. EXPERIMENTAL RESEARCH STUDIES
SN - 978-84-612-7578-6/2340-1079
PY - 2009
Y1 - 9-11 March, 2009
CI - Valencia, Spain
JO - 3rd International Technology, Education and Development Conference
JA - INTED2009 Proceedings
SP - 479
EP - 486
ER -
M. Smeada, O.A. Pirnuta, I.M. Dinescu (2009) ALUMINIUM ALLOYS USED IN AIRCRAFT ENGINEERING. EXPERIMENTAL RESEARCH STUDIES , INTED2009 Proceedings, pp. 479-486.
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