scholarly journals Investigation of the formability of aluminium alloys at elevated temperatures

2016 ◽  
Vol 159 ◽  
pp. 012012 ◽  
Author(s):  
M Tisza ◽  
D Budai ◽  
P Z Kovács ◽  
Zs Lukács
Keyword(s):  
Aluminium Alloys ◽  
Elevated Temperatures

Study on the Formability of Aluminium Alloy Sheets at Room and Elevated Temperatures

2016 ◽  
Vol 877 ◽  
pp. 393-399
Author(s):  
Jia Zhou ◽  
Jun Ping Zhang ◽  
Ming Tu Ma
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Elevated Temperature ◽  
Aluminium Alloy ◽  
Aluminium Alloys ◽  
Elevated Temperatures ◽  
Hot Stamping ◽  
Natural Aging ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet

This paper presents the main achievements of a research project aimed at investigating the applicability of the hot stamping technology to non heat treatable aluminium alloys of the 5052 H32 and heat treatable aluminium alloys of the 6016 T4P after six months natural aging. The formability and mechanical properties of 5052 H32 and 6016 T4P aluminum alloy sheets after six months natural aging under different temperature conditions were studied, the processing characteristics and potential of the two aluminium alloy at room and elevated temperature were investigated. The results indicated that the 6016 aluminum alloy sheet exhibit better mechanical properties at room temperature. 5052 H32 aluminum alloy sheet shows better formability at elevated temperature, and it has higher potential to increase formability by raising the temperature.

Materials—Metallic and Non-Metallic

1961 ◽  
Vol 65 (602) ◽  
pp. 83-85
Author(s):  
N. J. L. Megson
Keyword(s):  
High Temperature ◽  
Titanium Alloys ◽  
Aluminium Alloys ◽  
Elevated Temperatures ◽  
Maximum Temperature ◽  
Considerable Time ◽  
Heating Effects ◽  
Rain Erosion

With increasing speeds of aircraft, problems arise over materials of construction, partly through kinetic heating effects which cause temperature rises and partly through rain erosion effects. Additionally, account has to be taken of a required life of 30,000 hours which is much longer than that over which most materials are normally evaluated.For speeds of Mach 2.2, the maximum temperature attained will be of the order of 130°C, while for Mach 2.7 the corresponding temperature will be 200°C or higher. For the lower speed, it is probable that aluminium alloys will be satisfactory, although it must be emphasised that no information is yet available on the long-term behaviour of materials at the elevated temperatures likely to be experienced. Test programmes are in hand, but these will necessarily take considerable time for their completion. For speeds of Mach 2.7 or above, steel or titanium alloys will be required, but here again the necessary evaluation for long periods at high temperature has yet to be completed.

scholarly journals Tribological and mechanical behaviours of nanostructured aluminium alloys and nanocomposites at elevated temperatures: A short review

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Olawale Ajibola ◽  
Adebayo Owa ◽  
Abdullahi Adebayo ◽  
Sunday Borisade ◽  
Oluwole Adigun
Keyword(s):  
Aluminium Alloys ◽  
Elevated Temperatures ◽  
Weight Ratio ◽  
High Strength ◽  
Short Review ◽  
Nano Composites ◽  
Production Methods ◽  
The Public ◽  
Vast Literature ◽  
Mechanical Behaviours

Aluminium alloys demonstrate exceptional properties such as high strength-weight ratio and corrosion resistance are used for general engineering applications, automobile, automotives and in aerospace industries. However, they suffer some limitations as wear and creep at high temperatures. With the trending developments from nanometallurgy, diverse nano-particle compounds of mono and heterogeneous compositions have been used in reinforcing aluminium and its alloys as widely reported in the public domains. This paper reviews some of the vast literature on the enhancement of nanostructured aluminium alloys and reinforced aluminium nanocomposites. Importance is laid on the tribological and mechanical behaviours of the manufactured composites and nano-composites with respect to their production methods and applications at elevated (high) and cryogenic (low) temperatures. Keywords— Tribology; mechanical behaviours; nanostructure; aluminium alloys; nano-composites; elevated temperatures 

Castable Aluminium Alloys for High Temperature Applications

2013 ◽  
Vol 765 ◽  
pp. 8-12 ◽  
Author(s):  
Yang Yang Fan ◽  
Makhlouf M. Makhlouf
Keyword(s):  
High Temperature ◽  
Aluminium Alloys ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Eutectic System ◽  
Casting Alloys ◽  
Elevated Temperature Tensile ◽  
Nickel Base ◽  
Room Temperature Strength ◽  
Temperature Applications

Most traditional aluminium casting alloys are based on the aluminium-silicon eutectic system because of its excellent casting characteristics. However, the solidus in this system does not exceed 577 °C and the major alloying elements used with silicon in these alloys have high diffusivity in aluminium. Therefore, while these elements enhance the room temperature strength of the alloy, they are not useful at elevated temperatures. Considering nickel-base superalloys, whose mechanical properties are retained up to temperatures that approach 75% of their melting point, it is conceivable that castable aluminium alloys can be developed on the same basis so that they are useful at temperatures approaching 300 °C. In this publication, we present the thought process behind developing a new castable aluminum alloy that is designed specifically for such high temperature applications and we present the alloy’s measured castability characteristics and its elevated temperature tensile properties.

The Influence of the SPD Temperature on Superplasticity of Aluminium Alloys

2006 ◽  
Vol 503-504 ◽  
pp. 585-590 ◽  
Author(s):  
Rinat K. Islamgaliev ◽  
N.F. Yunusova ◽  
Ruslan Valiev
Keyword(s):  
Aluminium Alloys ◽  
Elevated Temperatures ◽  
Volume Fraction ◽  
High Pressure Torsion ◽  
Strain Rates ◽  
Angular Pressing ◽  
Thin Foils ◽  
Transmission Electron ◽  
In Situ Heating

Recent studies have demonstrated that ultrafinе-grainеd (UFG) alloys processed by equal channel angular pressing (ECAP) and high pressure torsion (HPT) can exhibit enhanced supеrplacticity at relatively low temperature and/or high strain rates. At the same time severe plastic deformation (SPD) of aluminium alloys is often carried out at elevated temperatures leading to various grain size and volume fraction of precipitates. The significance of the SPD temperature for commercial 1420 and 1421 aluminium alloys has been evaluated in this paper using in-situ heating of thin foils in the column of a transmission electron microscope. Superplastic characteristics of alloys processed at various ECAP temperatures are discussed.

Sign in / Sign up

Export Citation Format

Share Document