Grade-Maintaining Recycling of 7050-T7451 Aluminium Plate

Grade-Maintaining Recycling of 7050-T7451 Aluminium Plate

Aluminium alloy 7050 is one of the primary materials for aerospace applications in the 3-6 inch thickness range.2017-t7451 aluminium plate It has excellent toughness/corrosion resistance properties and is less quench sensitive than the older, more established alloy 7075.2017-t7451 aluminium plate 7050 is also able to achieve higher strength levels with good stress corrosion cracking and fracture toughness, even in thicker sections.

A large number of machining chips are generated during the production of aviation components, and most of them are down-graded recycled as cast alloys, resulting in resource waste.2017-t7451 aluminium plate In order to avoid such wasted resources, this article demonstrates the technical route for grade-maintaining recycling of aerospace aluminium using MCs at industrial scale. The microstructure evolution and properties of the industrial recycled 7050 alloy are investigated in terms of MCs ratio, melt quality, and deformation mechanism. The results indicate that the reclaimed metal is a good candidate for grade-maintaining recycling.

The fractography of the L tensile specimen of the primary and recycled 7050 alloy in the T7451 state are shown in Fig.2017-t7451 aluminium plate 8. The fracture modes of the reclaimed alloy are observed to be micro-void coalescence. It is found that the reclaimed alloy can be produced in a stable T7451 state by adjusting the processing parameters.

Moreover, the results show that the reclaimed alloy has a high ductility and good mechanical properties after annealing to T7451.2017-t7451 aluminium plate However, the recrystallization ratio is much lower for the reclaimed alloy than for the primary material. The reason is that a small proportion of the dispersed second phases could pin dislocations at the original interfaces during recrystallization.

In addition, the reclaimed alloy has a lower elastic limit and a smaller strain at rupture for a given load, which could be related to the deformation mechanisms.2017-t7451 aluminium plate Therefore, more research needs to be done on the reclaimed alloys and their deformation behavior to improve their fatigue resistance.

A review of existing data shows that there is a shortage of openly available fatigue test results for the 7050-T7451 aluminum alloy in the L-S orientation, in thick plate, and in the production material.2017-t7451 aluminium plate In addition, the available data for T7451 alloy has not been consolidated into a comprehensive database that can be used to perform predictive failure analysis. The lack of openly available data for the 7050-T7451 alloy may result in incorrect design decisions and a limited understanding of its fatigue characteristics. It is important to have reliable, accurate fatigue data for this material in order to provide a safe service life estimate for aircraft. Therefore, this article will present a method for collecting and analyzing openly accessible fatigue data for the 7050-T7451 aluminum plate to help engineers make informed design decisions. This will help to extend the service life of aircraft and reduce the number of aircraft withdrawn from service before they exhaust their design life. This will ultimately save the industry money, and protect the environment by reducing CO2 emissions. Moreover, it will help to reduce maintenance costs for air transportation and increase the safety of airplanes.

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