Continuous hot corrosion behaviour of an FeCrAlSi coating prepared by laser cladding

Yang, Yixin; Li, Yuxin; Liu, Zhiguo; Bai, Peikang; Nie, Jinhao; Liu, Siyuan; Chen, Bowen; Wei, Shouzheng; Guan, Qingxin; Cai, Jie

doi:10.1016/j.surfcoat.2021.127424

Cited by 23 publications

(3 citation statements)

References 47 publications

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“…The SRP were enriched on the surface of the specimen and grew in the pores of corrosion products. Petal shapes were observed in the corrosion products of both specimens [ 30 ], and these were oriented nearly perpendicular to the specimen surface. SRP clearly were attached on the surface.…”

Section: Resultsmentioning

confidence: 99%

Corrosion of an AZ31B Magnesium Alloy by Sulfate-Reducing Prokaryotes in a Mudflat Environment

et al. 2022

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To study the abnormal failure of magnesium anodes for buried pipelines in marine engineering in the unique environment of mudflats, a strain of a sulfate–reducing prokaryote (SRP) was isolated from pipe–laying soil, and identified as Desulfovibrio sp. HQM3. Weight–loss test, electrochemical measurements, SEM, EDS, XRD, and CLSM techniques were used to study the effect of corrosion on the AZ31B magnesium alloy. Under the influence of SRP, the magnesium alloy corroded severely at rates up to 1.31 mm/year in the mudflat environment. SRP accelerated corrosion by 0.3mm/year. Pitting occurred on the samples in both abiotic and biotic systems. The pitting depth reached 163.47 μm in the biotic system after 14 days. The main composition of a petal–like corrosion product was Mg(OH)2. The results show that a mudflat environment can lead to an accelerated corrosion of magnesium alloys.

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Section: Resultsmentioning

confidence: 99%

Corrosion of an AZ31B Magnesium Alloy by Sulfate-Reducing Prokaryotes in a Mudflat Environment

et al. 2022

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“…Up to now, the corrosion resistance of metal coating [5,12,13] and ceramic coating [14][15][16] has been investigated. Especially, FeCrAl-based coatings have been regarded as one of the most promising candidates due to their excellent LBE corrosion resistance and outstanding bonding strength with the steel cladding tube [17]. Weisenburger et al [5] explored the LBE corrosion resistance of the FeCrAlY coating on the outer surface of the T91 tube and indicated that the coated tube showed a shiny metallic surface with only a few dark places after exposure to 550 °C and 600 °C.…”

Section: Introductionmentioning

confidence: 99%

Investigation and evaluation of high-temperature lead-bismuth eutectic (LBE) corrosion resistance and compression performance of the FeCrAl-based coatings

Zhang,

Qiu,

Zhou

et al. 2024

Mater. Res. Express

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The high-temperature lead-bismuth eutectic (LBE) corrosion resistance and ring compression performance of the Fe15Cr11Al2Si, Fe15Cr11Al0.5Y, and Fe15Cr11Al2Si0.5Y coatings were investigated. Even if the corrosion test temperature reaches 800 ℃, all these coatings can effectively protect the steel cladding tube. After the corrosion test temperature exceeded 660 ℃, an obvious Al-rich oxide layer was formed on the surface of the coating, and Al element enrichment occurred at the interface between the coating and the substrate. After the corrosion test at 800 ℃, holes appeared in the thick interface layer of the Fe15Cr11Al2Si0.5Y coating. The Fe15Cr11Al2Si coating cracked after the ring compression test with a deformation rate of 3%, and the coating peeled off after the deformation rate reached 5%. When the deformation rate reached 5%, there was still no cracking in the Fe15Cr11Al0.5Y coating. When the deformation rate reached 30%, the coating cracked, but the cracked coating was still tightly bonded with the substrate. The Fe15Cr11Al2Si0.5Y coating has the worst compression performance, even if the deformation rate is 1%, the coating still peels off obviously. The underlying mechanism for the evolution of corrosion resistance and compression performance was discussed.

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“…It was found that the Al–42Cu–5Fe (wt%) composition achieves the best quality of the coating with a hardness of 370 HV 0.2 . Recently, Fe–Cr–Al–Si coatings were prepared using laser cladding technology and their corrosion resistance in a eutectic 75 wt% Na 2 SO 4 + 25 wt% K 2 SO 4 salt at 800 °C in air were measured [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced corrosion resistance properties of Fe–Al–Cr laser cladding coatings on 1045 carbon steel substrates

Luo

Cao

et al. 2023

Heliyon

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Continuous hot corrosion behaviour of an FeCrAlSi coating prepared by laser cladding

Cited by 23 publications

References 47 publications

Corrosion of an AZ31B Magnesium Alloy by Sulfate-Reducing Prokaryotes in a Mudflat Environment

Corrosion of an AZ31B Magnesium Alloy by Sulfate-Reducing Prokaryotes in a Mudflat Environment

Investigation and evaluation of high-temperature lead-bismuth eutectic (LBE) corrosion resistance and compression performance of the FeCrAl-based coatings

Enhanced corrosion resistance properties of Fe–Al–Cr laser cladding coatings on 1045 carbon steel substrates

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