Recent Advancements in Development and Application of an Iron-based Shape Memory Alloy at Empa
| Autor: | Moslem Shahverdi, Saim Raza, Elyas Ghafoori, Christoph Czaderski, Julien Michels, Masoud Motavalli |
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| Jazyk: | German<br />English<br />French |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | CHIMIA, Vol 76, Iss 3 (2022) |
| Druh dokumentu: | article |
| ISSN: | 0009-4293 2673-2424 |
| DOI: | 10.2533/chimia.2022.242 |
| Popis: | The Fe-SMA developed at the Swiss Federal Laboratories for Materials Science and Technology (Empa) has an alloy composition of Fe–17Mn–5Si–10Cr–4Ni–1(V,C) and exhibits an excellent shape memory effect on heating at 160 °C or above. The shape memory effect feature equips Fe-SMA with a unique self-prestressing ability that can be exploited for many civil engineering applications. In addition to the self-prestressing ability, Fe-SMA has a high elastic modulus (165 GPa), low cost, and high machinability compared to the nickel and copper-based SMAs, which makes it more suitable for structural applications. The current work aims to provide an overview of the recent advancements in the research and development of Fe-SMA at Empa. To this end, the advancements related to the material development, applications of Fe-SMAs in prestressing reinforced concrete (RC) and metallic structures, and the introduction of Fe-SMA reinforcements to the market alongwith some recent field applications are presented. The paper concludes with an overview of the opportunities and challenges associated with using Fe-SMA reinforcements in civil infrastructure. |
| Databáze: | Directory of Open Access Journals |
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