| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Popa, Mihai
Gheorghe Asachi Technical University of Iași
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2024Mechanical Properties and Wear Resistance of Biodegradable ZnMgY Alloycitations
- 2024Highlighting Free-Recovery and Work-Generating Shape Memory Effects at 80r-PET Thermoformed Cups
- 2021Influence of alloying elements on the thermal behavior of NiTi shape memory alloyscitations
- 2021On the Free Recovery Bending Shape Memory Effect in Powder Metallurgy FeMnSiCrNi
- 2021Structural Effects of Heat Treatment Holding-Time on Dynamic and Damping Behaviour of an Fe-28Mn-6Si-5Cr Shape Memory Alloy
- 2019Processing effects on tensile superelastic behaviour of Fe43.5Mn34Al15 ± XNi7.5∓X shape memory alloys
- 2019Processing effects on tensile superelastic behaviour of Fe<inf>43.5</inf>Mn<inf>34</inf>Al<inf>15 ± X</inf>Ni<inf>7.5∓X</inf> shape memory alloys
- 2019Accumulation of stress induced martensite in Fe<sub>43.5</sub>Mn<sub>34</sub>Al<sub>15±x</sub>Ni<sub>7.5∓</sub>X shape memory alloyscitations
Places of action
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article
Accumulation of stress induced martensite in Fe<sub>43.5</sub>Mn<sub>34</sub>Al<sub>15±x</sub>Ni<sub>7.5∓</sub>X shape memory alloys
Abstract
<jats:title>Abstract</jats:title><jats:p>Fe<jats:sub>43.5</jats:sub>Mn<jats:sub>34</jats:sub>Al<jats:sub>15</jats:sub>Ni<jats:sub>7.5</jats:sub> shape memory alloys (SMAs), have drawn considerable attention from the part of scientific community due to its superelastic behaviour, stable over a large thermal range (from -50 to +150°C) [1]. After cyclic heat treatment, solution treatment and ageing, the specimens became oligocrystalline and were reinforced by NiAl nanoprecipitates. The typical thermomechanical processing routine, before cyclic heat treatment of FeMnAlNi alloys, involves hot rolling, annealing and cold rolling [2]. The present paper discusses the effects of ± 1.5 at. % aluminium substitution with nickel, by correlating tensile behaviour with microstructural observations. The SMA specimens with chemical composition Fe<jats:sub>43.5</jats:sub>Mn<jats:sub>34</jats:sub>Al<jats:sub>15±1.5</jats:sub>Ni<jats:sub>7.5∓1.5</jats:sub> were subjected to tensile tests, comprising loading-unloading cycles, based on which recoverable strain and energy storage efficiency were calculated. Considering that, in each cycle, a permanent strain was obtained, it follows that not all of the amount of stress induced martensite completely reversed to austenite, but a small part of it was accumulated in each cycle. By optical and scanning electron microscopy, the microstructural changes correlated with stress induced martensite accumulation were emphasized, while considering the effects of ± 1.5 at. % Al substitution with Ni.</jats:p>