TY - JOUR
T1 - Recent developments in advanced aircraft aluminium alloys
AU - Dursun, Tolga
AU - Soutis, Costas
PY - 2014
Y1 - 2014
N2 - Aluminium alloys have been the primary material for the structural parts of aircraft for more than 80. years because of their well known performance, well established design methods, manufacturing and reliable inspection techniques. Nearly for a decade composites have started to be used more widely in large commercial jet airliners for the fuselage, wing as well as other structural components in place of aluminium alloys due their high specific properties, reduced weight, fatigue performance and corrosion resistance. Although the increased use of composite materials reduced the role of aluminium up to some extent, high strength aluminium alloys remain important in airframe construction. Aluminium is a relatively low cost, light weight metal that can be heat treated and loaded to relatively high level of stresses, and it is one of the most easily produced of the high performance materials, which results in lower manufacturing and maintenance costs. There have been important recent advances in aluminium aircraft alloys that can effectively compete with modern composite materials. This study covers latest developments in enhanced mechanical properties of aluminium alloys, and high performance joining techniques. The mechanical properties on newly developed 2000, 7000 series aluminium alloys and new generation Al-Li alloys are compared with the traditional aluminium alloys. The advantages and disadvantages of the joining methods, laser beam welding and friction stir welding, are also discussed.
AB - Aluminium alloys have been the primary material for the structural parts of aircraft for more than 80. years because of their well known performance, well established design methods, manufacturing and reliable inspection techniques. Nearly for a decade composites have started to be used more widely in large commercial jet airliners for the fuselage, wing as well as other structural components in place of aluminium alloys due their high specific properties, reduced weight, fatigue performance and corrosion resistance. Although the increased use of composite materials reduced the role of aluminium up to some extent, high strength aluminium alloys remain important in airframe construction. Aluminium is a relatively low cost, light weight metal that can be heat treated and loaded to relatively high level of stresses, and it is one of the most easily produced of the high performance materials, which results in lower manufacturing and maintenance costs. There have been important recent advances in aluminium aircraft alloys that can effectively compete with modern composite materials. This study covers latest developments in enhanced mechanical properties of aluminium alloys, and high performance joining techniques. The mechanical properties on newly developed 2000, 7000 series aluminium alloys and new generation Al-Li alloys are compared with the traditional aluminium alloys. The advantages and disadvantages of the joining methods, laser beam welding and friction stir welding, are also discussed.
KW - Aircraft structures
KW - Al-Li alloys
KW - Aluminium alloys
KW - Composites
KW - Mechanical properties
UR - http://www.scopus.com/inward/record.url?scp=84891053406&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2013.12.002
DO - 10.1016/j.matdes.2013.12.002
M3 - Review article
AN - SCOPUS:84891053406
SN - 0264-1275
VL - 56
SP - 862
EP - 871
JO - Materials and Design
JF - Materials and Design
ER -