Презентация на тему «Применение материалов в авиации и космонавтике»

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Why is Titanium Alloys used in aviation and aerospace?

Shpankova Zlata

ПАП-81

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Titanium in Aviation

Titanium is chosen for aerospace applications due to its exceptionally high strength-to-weight ratio, corrosion resistance, and ability to perform at elevated temperatures. In aircraft structures and engines, it helps reduce weight without compromising reliability; in modern aircraft, it can account for 15 to 18 percent of the airframe's total mass. For this reason, it is used in components where safety, durability, and resistance to mechanical stress are of critical importance.

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Key properties

The primary advantages of titanium are its low density, high strength, and good heat resistance. According to industry data, its density is approximately 60 percent that of steel, which allows for significant weight savings. Furthermore, titanium is corrosion-resistant and more compatible with composite materials than many other metals.

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Where it is used

Titanium is used in airframe components, engines, fasteners, piping, and landing gear. It is particularly important in areas where temperatures exceed approximately 135 degrees Celsius—conditions under which the performance of aluminum begins to degrade. In modern aircraft, such as the Airbus A350 and the Boeing 787, titanium is used extensively alongside carbon-fiber-reinforced composites.

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Why it is advantageous

In aviation and astronautics, titanium is advantageous because it reduces structural mass without compromising strength. This lowers fuel consumption, extends the service life of components, and decreases the need for protective coatings. These properties are particularly valuable in environments characterized by high vibration, temperature fluctuations, and long-term operation.

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Modern aircraft

In modern airliners, titanium has become particularly sought-after due to the increasing use of composite materials. It performs well alongside carbon-fiber-reinforced polymers, as it is less susceptible to galvanic corrosion and offers a better match in terms of its coefficient of thermal expansion. Consequently, titanium is frequently employed in areas where aluminum can no longer provide the necessary level of reliability.

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Thank you for attention!