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Evaluation of the Possibility of Applying Thermal Barrier Coatings to AlSi7Mg Alloy Castings

Marek Mróz Patryk Rąb
Archives of Foundry Engineering | 2023 | vol. 23 | No 3 | 104-109 | DOI: 10.24425/afe.2023.146668
Keywords thermal barrier coating aluminum-silicon alloy atmospheric plasma spraying
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Abstract

This paper analyses the possibility of applying thermal barrier coatings (TBCs) onto a substrate made of the AlSi7Mg alloy, intended for, among other things, internal combustion engine components. Engine components made of aluminum-silicon alloys, especially pistons and valve heads, are exposed to high temperature, pressure and thermal shock resulting from the combustion of the fuel-air mixture. These factors cause degradation of these components and can lead to damage. To minimize the risk of damage to engine components caused by heat stress, one way is to apply TBCs. Applying TBCs coatings to engine components improves their durability, increases power output and reduces fuel consumption. The research scope includes the application of an Al2O3-TiO3 coating via the APS (Air Plasma Spraying or Atmospheric Plasma Spraying) method onto a substrate of the AlSi7Mg alloy, analysis of the microstructure and chemical composition of the substrate and coating material, and assessment of the quality of the coating's bond with the AlSi7Mg alloy substrate using the scratch test method.
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Bibliography

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Authors and Affiliations

Marek Mróz
ORCID: ORCID
Patryk Rąb
ORCID: ORCID

Decarbonization of Production Systems in Foundries

C. Kolmasiak
Archives of Foundry Engineering | 2024 | vol. 24 | No 2 | 104-109 | DOI: 10.24425/afe.2024.149276
Keywords Decarbonization Renewable energy Foundry production
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Abstract

The article discusses the growing importance of decarbonization of production systems in the foundry industry as a response to climate challenges and increasing requirements for sustainable development. The process of reducing greenhouse gas emissions in foundry production is caused by a number of reasons. Decarbonization of the foundry industry refers to actions aimed at reducing greenhouse gas emissions, especially carbon dioxide (CO2). Reducing carbon dioxide emissions is increasingly being considered as a key element of the strategy of both small and large foundries around the world. Foundry is one of the industries that generates significant amounts of carbon dioxide emissions due to the energy consumption in the process of melting and forming metals. There is virtually no manufacturing industry that does not use elements cast from iron, steel or non-ferrous metals, ranging from elements made of aluminum to zinc. The article presents various decarbonization strategies available to foundries, such as: the use of renewable energy, the use of more efficient melting technologies, or the implementation of low-energy technologies throughout the production process. Application examples from different parts of the world illustrate how these strategies are already being put into practice, as well as the potential obstacles and challenges to full decarbonization.
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Bibliography

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Authors and Affiliations

C. Kolmasiak
1
  1. Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Department of Production Management, Poland

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