Aluminum alloys are extensively applied in the transport sector and contribute to sustainability, lean production and circular economy as well; their widespread use can be considered as accelerators for transition to Industry 4.0 and Industry 5.0 concepts. One of the features is that at the end of a vehicle`s life cycle almost all aluminum can be recycled for production of new products. The presence of aluminum in all kinds of transport provides an increase of speed, safety, energy savings and decrease of transport emissions. Thus, with a 10 % reduction in the total weight of the car a fuel saving of 5…10 % is achieved in the total spent fuel per kilometer [Tolun, 2019]. Replacement of 1 kg of steel on 1 kg of aluminum / aluminum alloy in automobile construction decreases the overall carbon dioxide emissions by 5…8 kg CO2-eq. for the life cycle (or per 200,000 km of mileage) [Geyer, 2008; Peppas et al., 2021]. There is also a reduction of total life cycle energy consumption up to 20 % [The Aluminum Association]. Aluminum discs ensure a smooth ride and improved heat dissipation from the braking system. In the event of an accident, aluminum absorbs the impact more effectively than steel.
Environmental policy and regulation are key to promoting a green transformation of the economy that is essential for Ukraine in the framework of significant technogenic load as the urgency of post-war reconstruction. When developing measures to overcome /
Due to its properties aluminum is a vital resource for circular economy and zero waste technologies, recycling and sustainability. Recycling aluminum provides an opportunity to decrease carbon dioxide emissions by replacing primary aluminum. Recycling of aluminum requires nearly 5% of energy needed for primary production, that results in greenhouse gases emissions of 0,5 tons of CO2e. Recycled aluminum’s main route is for production of casting alloys. With proper metallurgical processing scrape and aluminum waste can be used to make almost any product: wheels, chassis, transmissions in transport sector; facades, windows, doors in construction; cans, foil in packaging; solar panels, wind farms, aluminum-ion batteries in renewable energy and so on.
For alloys made from secondary raw materials, beside the creation of a protective layer on the surface of the melt, which prevents its saturation with hydrogen and oxides during contact with the furnace atmosphere, it is important to ensure effective chemical destruction of oxides on the surface of microvolumes of aluminum melt and decrease the content of hydrogen and other dissolved gases. High efficiency in treatment of aluminum alloys made from scrape and waste has shown the modification, which is carried out to improve the structure (grinding grains, dendritic branches, structural components, dispersing particles of the secondary phases, giving them a favorable shape, etc.) and obtain the material with necessary mechanical and service properties.
When choosing a composition for both flux refining and modification, it is necessary to take into account not only materials science aspects of the problem, but also the impact of their composition on the health and safety of production personnel, city residents and the environment.
Образование сегодня становится ключевым аспектом развития экономики Украины. Главным трендом образования в мире является SТЕМ-подход (S-наука, T-технология, E-инженерия, M-математика). Одной из проблем традиционной системы образования в сфере безопасности
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