Scientists have created a self-healing aluminum that is 25 times more durable than normal

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Scientists have created a self-healing aluminum that is 25 times more durable than normal

Researchers have found a way to change the microstructure of aluminum alloys so that they can withstand dynamic loads by repairing weakened areas by trapping new particles.

Due to its lightness and good corrosion resistance, aluminum has found many applications in various industries, especially mechanical engineering..  However, its main disadvantage is its tendency to rapidly accumulate damage under the influence of alternating or cyclic stresses, which ultimately lead to the destruction of parts. Research shows that 80% of all technical alloy failures are caused by fatigue.

Materials scientists at Monash University have been looking for various ways to combat the destruction of weak zones subject to dynamic loads and the formation of cracks. After examining the conceptual factors, they decided to change the original microstructure metal taking into account future alternating stresses.

The team developed a method for capturing small particles formed during deformation of an aluminum alloy and reinforcing them due to weak points. The amplification process is to imitate hundreds of load cycles, during which new particles accumulate in damaged areas, strengthening the microstructure of the metal and increasing its tensile strength. Such conversions improve endurance and increase the service life of aluminum products by up to 25 times..

Scientists have created a self-healing aluminum that is 25 times more durable than normal

Recall that last year, scientists discovered a new mechanism that can significantly increase the strength of metals. and ceramics without deterioration of their electrical conductivity.

Scientists have created a self-healing aluminum that is 25 times more durable than normal

text: Ilya Bauer, photo: godfreywing

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