Oxidation Resistance of Highly Porous Fe-Al Foams Prepared by Thermal Explosion

Cai, Xiaoping; Liu, Yanan; Wang, Xiaohong; Jiao, Xinyang; Wang, Jianzhong; Akhtar, Farid; Feng, Peizhong

doi:10.1007/s11661-018-4680-6

Cited by 12 publications

(1 citation statement)

References 42 publications

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“…An interesting feature of Nb–75 at.-% Al system is that the TE occurs at a temperature almost 130°C higher than the melting point of Al (660°C), which is distinct from most of such other TE reaction system as Fe–Al [13] and Ti–Al [14]. Previous studies showed that the combustion reaction of Nb–Al was triggered by the dissolution–precipitation process [15].…”

Section: Resultsmentioning

confidence: 99%

Microstructure and oxidation resistance of porous NbAl₃ intermetallic prepared by thermal explosion reaction

Cai

Ren

et al. 2019

Materials Science and Technology

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Porous Nb–Al intermetallic was prepared by thermal explosion (TE) of combustion synthesis (CS). The temperature profile, phase composition, open porosity and oxidation resistance of Nb–Al compact were investigated. The results showed that the significant exothermic reaction occurred, which means that an obvious TE appeared during heating. The volume expansion of 190% was observed, and the prepared sample exhibited interconnected pores with an open porosity of 65.7%. The porous NbAl3 intermetallic showed ‘pest’ oxidation in the temperature range of 500–600°C, and followed the parabolic oxidation law at 400°C. Moreover, due to the highly porous structure, this material had great potential for application to separation and heat insulation at a temperature range of room temperature to 400°C.

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Section: Resultsmentioning

confidence: 99%

Microstructure and oxidation resistance of porous NbAl₃ intermetallic prepared by thermal explosion reaction

Cai

Ren

et al. 2019

Materials Science and Technology

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Progress of porous Al-containing intermetallics fabricated by combustion synthesis reactions: a review

et al. 2021

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High-temperature Corrosion of ~ 30 Pct Porous FeCr Stainless Steels in Air: Long-Term Evaluation Up to Breakaway

Koszelow

Makowska

Drewniak

et al. 2023

Metall Mater Trans A

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In this work, a long-term (up to 6000 hours) corrosion evaluation of three porous (~ 30 pct of initial porosity) ferritic iron-chromium alloys with different Cr contents (20, 22, and 27 wt pct of Cr) was carried out at 600 °C, 700 °C, 800 °C, and 900 °C in air. Mass gain measurements and SEM analyses revealed that at temperatures above 600 °C, all alloys exhibit breakaway corrosion, whereas at 600 °C, none of the alloys were heavily oxidized even after 6000 hours. Based on the results, the diffusion character of the corrosion of porous chromia-forming alloys was identified. The microstructure changes at high temperatures in porous alloys containing 22 wt pct of Cr were determined in detail by transmission electron microscopy. The proposed prediction model indicated that the lifetimes of the Fe20Cr and Fe22Cr alloys were determined as 1250 hours (± 535 hours) and 1460 hours (± 640 hours), respectively. It is in agreement with the long-term oxidation experiment. For the Fe27Cr alloy, the deviation between predicted and observed lifetimes occurs. The proposed model allows for qualitative estimation of the porous alloys’ lifetime with experimentally validated accuracy.

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Oxidation Resistance of Highly Porous Fe-Al Foams Prepared by Thermal Explosion

Cited by 12 publications

References 42 publications

Microstructure and oxidation resistance of porous NbAl₃ intermetallic prepared by thermal explosion reaction

Microstructure and oxidation resistance of porous NbAl₃ intermetallic prepared by thermal explosion reaction

Progress of porous Al-containing intermetallics fabricated by combustion synthesis reactions: a review

High-temperature Corrosion of ~ 30 Pct Porous FeCr Stainless Steels in Air: Long-Term Evaluation Up to Breakaway

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Oxidation Resistance of Highly Porous Fe-Al Foams Prepared by Thermal Explosion

Cited by 12 publications

References 42 publications

Microstructure and oxidation resistance of porous NbAl3 intermetallic prepared by thermal explosion reaction

Microstructure and oxidation resistance of porous NbAl3 intermetallic prepared by thermal explosion reaction

Progress of porous Al-containing intermetallics fabricated by combustion synthesis reactions: a review

High-temperature Corrosion of ~ 30 Pct Porous FeCr Stainless Steels in Air: Long-Term Evaluation Up to Breakaway

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Microstructure and oxidation resistance of porous NbAl₃ intermetallic prepared by thermal explosion reaction

Microstructure and oxidation resistance of porous NbAl₃ intermetallic prepared by thermal explosion reaction