Insights into high-temperature oxidation of Fe-Mn-Si-Cr-Ni shape memory stainless steels and its relationship to alloy chemical composition

Silva, R.; Vacchi, G.S.; Santos, I.G.R.; Malafaia, Artur Mariano de Sousa; Kugelmeier, Cristie Luis; Filho, Anibal de Andrade Mendes; Pascal, C.; Sordi, Vitor Luiz; Rovere, Carlos Alberto Della

doi:10.1016/j.corsci.2019.108269

Cited by 22 publications

(19 citation statements)

References 42 publications

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“…The results observed by XRD after oxidation at 800 °C (Figure 2) and SEM/EDS (Figure 3) are in agreement with oxides observed and analyzed by XRD and EDS on Fe-Mn-Si-Cr-Ni alloys in previous studies [4][5][6]. These authors found Mn 2 O 3 , in the external layer basically, Mn 3 O 4 at middle layer and MnCr 2 O 4 located at the metal/oxide interface.…”

Section: Oxidation At 800 °Csupporting

confidence: 90%

“…These authors found Mn 2 O 3 , in the external layer basically, Mn 3 O 4 at middle layer and MnCr 2 O 4 located at the metal/oxide interface. Furthermore, it was reported that a Mn-depleted zone was formed below the oxide layer [4][5][6][7]11,13], where a metallic transformation from austenite to ferrite occurs. This fact explains the Fe-α peaks observed by XRD.…”

Section: Oxidation At 800 °Cmentioning

confidence: 99%

“…As this kind of alloy presents Si and Cr, that are known to provide high oxidation resistance in Fe-based alloys, an obvious attempt for improving the performance at high temperature would be to increase Cr and Si as well as to decrease Mn amount. Comparing two SMSSs, Fe-13.50Mn-3.98Si-9.54Cr-4.51Ni and Fe-12.32Mn-6.16Si-10.15Cr-5.15Ni [6], it was observed that the second one, with less Mn and larger amount of ferrite stabilizers elements, Si and Cr, presented superior mass gain under isothermal oxidation at 800 °C. The explanation was that higher amounts of Si and Cr, both ferrite-stabilizers elements, facilitated ferrite stabilization at 800 °C during oxidation due to Mn depletion, making the Mn diffusion rate faster when compared with the austenitic structure [9].…”

Section: Introductionmentioning

confidence: 96%

“…They observed that during oxidation at high temperature the oxide layer presents Mn-rich oxides (Mn 2 O 3 and Mn 3 O 4 ) and Mn-Cr-spinel, causing depletion of Mn and generating a ferrite layer near the metal/oxide interface. After that, several studies were developed in order to try improving the oxidation resistance of these alloys, named as shape memory stainless steels (SMSS) [4,[6][7][8].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

High temperature cyclic oxidation behavior of a low manganese Fe12Mn9Cr5Si4Ni-NbC shape memory stainless steels

Malafaia

Silva

Rovere

et al. 2021

Journal of Alloys and Compounds

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Section: Oxidation At 800 °Csupporting

confidence: 90%

Section: Oxidation At 800 °Cmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High temperature cyclic oxidation behavior of a low manganese Fe12Mn9Cr5Si4Ni-NbC shape memory stainless steels

Malafaia

Silva

Rovere

et al. 2021

Journal of Alloys and Compounds

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“…Studies have found that Fe-SMA strips have a positive effect in countering the relaxation behavior of structures at elevated temperatures [ 142 ]. Furthermore, corrosion, creep, and relaxation behavior under extreme environments (e.g., high-temperature and chlorine environments) have been investigated which confirmed the suitability and reliability of Fe-SMA [ 120 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 ]. Another attractive advantage of Fe-SMA-based strengthening strategy is its re-prestressing property, i.e., HCF-induced relaxation in recovery stress can be restored through repeated rounds of thermal activation [ 18 , 134 , 151 ].…”

Section: Research and Potential Engineering Applicationsmentioning

confidence: 94%

Iron-Based Shape Memory Alloys in Construction: Research, Applications and Opportunities

Zhang

et al. 2022

Materials

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As a promising candidate in the construction industry, iron-based shape memory alloy (Fe-SMA) has attracted lots of attention in the engineering and metallography communities because of its foreseeable benefits including corrosion resistance, shape recovery capability, excellent plastic deformability, and outstanding fatigue resistance. Pilot applications have proved the feasibility of Fe-SMA as a highly efficient functional material in the construction sector. This paper provides a review of recent developments in research and design practice related to Fe-SMA. The basic mechanical properties are presented and compared with conventional structural steel, and some necessary explanations are given on the metallographic transformation mechanism. Newly emerged applications, such as Fe-SMA-based prestressing/strengthening techniques and seismic-resistant components/devices, are discussed. It is believed that Fe-SMA offers a wide range of applications in the construction industry but there still remains problems to be addressed and areas to be further explored. Some research needs at material-level, component-level, and system-level are highlighted in this paper. With the systematic information provided, this paper not only benefits professionals and researchers who have been working in this area for a long time and wanting to gain an in-depth understanding of the state-of-the-art, but also helps enlighten a wider audience intending to get acquainted with this exciting topic.

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Effect of Cerium Addition on the Microstructure and Shape Memory Properties of Austenitic Fe–Mn–Si–Cr–Ni Alloys

Silva,

Baroni,

Martins Junior

et al. 2023

Adv Eng Mater

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The addition of rare earth elements, such as cerium, to austenitic Fe–Mn–Si‐based shape memory alloys has been shown to improve both corrosion resistance and shape recovery. However, the mechanisms underlying the effect of Ce on shape recovery are still unclear. This study investigates the influence of the addition of small amounts of Ce (0.18, 0.42, and 0.96 wt%) on the microstructure and shape recovery of an austenitic Fe–13.50Mn–3.98Si–9.54Cr–4.51Ni alloy. Ce additions induce the formation of a large number of Ce‐rich particles, which act as austenitic grain refiners. Both grain refinement and the formation of Ce‐rich particles contribute to the strengthening of the matrix at 0.42 wt% Ce addition. In addition, Ce additions alter the MS temperature, which increases with Ce additions. Total shape recovery improves with 0.18 and 0.42 wt% Ce additions, but decreases with 0.96 wt% Ce addition. The beneficial effect of Ce addition in improving the shape recovery of the austenitic Fe–Mn–Si–Cr–Ni alloy is related to the enhancement of the elastic shape recovery component of the total shape recovery. However, the shape memory recovery due to the shape memory effect always decreases with the increase of the Ce content.

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Insights into high-temperature oxidation of Fe-Mn-Si-Cr-Ni shape memory stainless steels and its relationship to alloy chemical composition

Cited by 22 publications

References 42 publications

High temperature cyclic oxidation behavior of a low manganese Fe12Mn9Cr5Si4Ni-NbC shape memory stainless steels

High temperature cyclic oxidation behavior of a low manganese Fe12Mn9Cr5Si4Ni-NbC shape memory stainless steels

Iron-Based Shape Memory Alloys in Construction: Research, Applications and Opportunities

Effect of Cerium Addition on the Microstructure and Shape Memory Properties of Austenitic Fe–Mn–Si–Cr–Ni Alloys

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