A material degradation study of novel FeCrAl alloys, stainless steels and nickel base alloy in fluidized bed heat exchangers of a waste-fired CFB boiler

Lindmark, Hampus; Phother, Julien; Olausson, Maria  Dolores Paz; Nockert, Johanna; Lind, Fredrik; Jonasson, Anna; Barišić, Vesna; Vänskä, Kyösti; Rioja-Monllor, Laura; Liske, Jesper

doi:10.1016/j.fuel.2022.127299

Fuel

2023

DOI: 10.1016/j.fuel.2022.127299

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A material degradation study of novel FeCrAl alloys, stainless steels and nickel base alloy in fluidized bed heat exchangers of a waste-fired CFB boiler

Hampus Lindmark

Julien Phother

Maria Dolores Paz Olausson

et al.

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2024

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Cited by 3 publications

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Corrosion behavior of Ni–25Cr–10Fe–3Si–xMo alloys beneath KCl–ZnCl₂ deposits at 650°C: Role of long‐term aging

Jia,

Xu,

Wang

et al. 2024

Materials & Corrosion

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The corrosion behavior of unaged and thermally aged Ni–25Cr–10Fe–3Si–xMo (x = 0, 3 wt%) alloys was studied beneath KCl–ZnCl2 deposits at 650°C. The results indicated that the addition of Mo promoted the formation of a continuous Si‐rich protective layer and improved the corrosion performance of the unaged Ni–25Cr–10Fe–3Si–xMo alloys. The precipitates formed after long‐term aging greatly affect the corrosion resistance of the thermally aged alloys. The M23C6 along the grain boundaries is beneficial to improve corrosion resistance, however, the dispersed Laves phase and Sigma deteriorate corrosion resistance.

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Corrosion behavior of Ni–25Cr–10Fe–3Si–xMo alloys beneath KCl–ZnCl₂ deposits at 650°C: Role of long‐term aging

Jia,

Xu,

Wang

et al. 2024

Materials & Corrosion

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Metal loss and corrosion attack of FeCrAl overlay welds on evaporator tube shields of a waste‐fired power plant

Valiente Bermejo,

Núñez,

Norling

2024

Materials & Corrosion

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Three FeCrAl alloys (APMT, EF100 and EF101) from Kanthal® and the reference Ni‐Cr Alloy 625 were used as weld cladding materials on tube shields in the evaporator tube bank of a waste‐fired combined heat and power plant. For each alloy type, the overlay welded tube shields were placed in both roof and floor positions within the evaporator for 6 months. The metal‐loss rate, the microstructure and hardness of the overlay welds before and after exposure and the corrosion products were analysed. The results showed higher metal‐loss rates in the welds placed in the roof position, confirming heterogeneities in the evaporator bank environment. Alloys were ranked from higher to lower erosion–corrosion resistance as follows: APMT ≈ Alloy 625 > EF101 > EF100. The analysis of the corrosion attacks showed a significant variation among the alloys, from a primarily homogeneous corrosion attack on APMT to intergranular corrosion in EF100 and pit formation in EF101.

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Microstructure and Properties Characteristics of Ni–25Cr–10Fe–xSi (x = 1, 2, 3, 4) Alloys for Waste Incineration Equipment

Jia,

Xu,

Pan

et al. 2024

Metall Mater Trans A

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A material degradation study of novel FeCrAl alloys, stainless steels and nickel base alloy in fluidized bed heat exchangers of a waste-fired CFB boiler

Cited by 3 publications

References 22 publications

Corrosion behavior of Ni–25Cr–10Fe–3Si–xMo alloys beneath KCl–ZnCl₂ deposits at 650°C: Role of long‐term aging

Corrosion behavior of Ni–25Cr–10Fe–3Si–xMo alloys beneath KCl–ZnCl₂ deposits at 650°C: Role of long‐term aging

Metal loss and corrosion attack of FeCrAl overlay welds on evaporator tube shields of a waste‐fired power plant

Microstructure and Properties Characteristics of Ni–25Cr–10Fe–xSi (x = 1, 2, 3, 4) Alloys for Waste Incineration Equipment

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A material degradation study of novel FeCrAl alloys, stainless steels and nickel base alloy in fluidized bed heat exchangers of a waste-fired CFB boiler

Cited by 3 publications

References 22 publications

Corrosion behavior of Ni–25Cr–10Fe–3Si–xMo alloys beneath KCl–ZnCl2 deposits at 650°C: Role of long‐term aging

Corrosion behavior of Ni–25Cr–10Fe–3Si–xMo alloys beneath KCl–ZnCl2 deposits at 650°C: Role of long‐term aging

Metal loss and corrosion attack of FeCrAl overlay welds on evaporator tube shields of a waste‐fired power plant

Microstructure and Properties Characteristics of Ni–25Cr–10Fe–xSi (x = 1, 2, 3, 4) Alloys for Waste Incineration Equipment

Contact Info

Product

Resources

About

Corrosion behavior of Ni–25Cr–10Fe–3Si–xMo alloys beneath KCl–ZnCl₂ deposits at 650°C: Role of long‐term aging

Corrosion behavior of Ni–25Cr–10Fe–3Si–xMo alloys beneath KCl–ZnCl₂ deposits at 650°C: Role of long‐term aging