Effects of Sulphate Deposits on Corrosion Behaviour of Fe-Based Alloys in Wet CO2 Gas at 750 °C

Xie, Yongmin; Cai, Yuanwen; Zhang, Jianqiang; Gleeson, Brian; Young, David J.

doi:10.1007/s11085-020-10010-x

Cited by 8 publications

(7 citation statements)

References 65 publications

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“…From the TEM bright field image shows the oxide scale to consist of coarse-grained outer and fine-grained inner layers. As seen from the EDS analysis and phase identifications published previously [16], the scale consists of an outer Mn-rich oxide layer, an intermediate MnCr2O4, and an inner Cr2O3 layer. A thin, continuous SiO2 layer was also found at the scale-alloy interface [16].…”

Section: Gas-only Conditionmentioning

confidence: 87%

“…As seen from the EDS analysis and phase identifications published previously [16], the scale consists of an outer Mn-rich oxide layer, an intermediate MnCr2O4, and an inner Cr2O3 layer. A thin, continuous SiO2 layer was also found at the scale-alloy interface [16]. The Fe-25Cr-20Ni austenitic alloy formed a thick multilayered scale (Fig.…”

Section: Gas-only Conditionmentioning

confidence: 87%

“…The Fe-25Cr-20Ni austenitic alloy formed a thick multilayered scale (Fig. 1(c)), consisting of external Fe2O3, intermediate spinel, and inner chromium rich oxides [16]. While for 310SS, a protective oxide scale interrupted by small, local Fe-rich oxide nodules was observed (Fig.…”

Section: Gas-only Conditionmentioning

confidence: 95%

“…The TEM-EDS mapping results for the protective scale on 310SS (Fig. 3) revealed an outermost MnCr2O4 layer with Cr2O3 below it, and discrete islands of SiO2 at the oxidation front [16]. A multi-layered scale formed on Ni-25Cr (Fig.…”

Section: Gas-only Conditionmentioning

confidence: 98%

“…For Fe-25Cr alloy (Fig. 1(a)), a very thin protective oxide scale was formed, identified as Cr2O3 in [16].…”

Section: Gas-only Conditionmentioning

confidence: 99%

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Corrosion Behaviour of Fe-based and Ni-based Alloys in Wet CO2 Gas with and without Chloride Deposits at 750°C

Cai

Zhang

et al. 2023

Preprint

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Corrosion behaviours of Fe-25Cr, Fe-25Cr-2Mn-1Si, Fe-25Cr-20Ni, 310SS, Ni-25Cr, and Ni-25Cr-2Mn-1Si (all in wt. %) with and without NaCl-KCl deposits in Ar-60%CO2-20%H2O gas at 750oC were studied. Without salt deposits, Fe-25Cr performed protectively, while Fe-25Cr-20Ni and Ni-25Cr underwent breakaway oxidation with multi-layered scales formed. Adding alloy elements Si + Mn increased the corrosion resistance of all alloys by forming additional Mn-rich oxides and silica. Surface deposits of NaCl-KCl accelerated corrosion, forming porous Fe-rich oxide nodules for Fe-25Cr and thick, porous scales and internal oxidation zones for all other alloys. The protective effect of Si + Mn alloying disappeared in the presence of chlorides. Limited intergranular carbides were observed for all alloys in the gas-only condition. The extent of carburisation increased with the presence of chloride deposits for all Fe-based alloys, but remained unchanged for Ni-based alloys. Corrosion of these alloys at 750oC is compared with that at 650oC. The effect of chlorides in volatilising metals at 750oC is discussed.

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Section: Gas-only Conditionmentioning

confidence: 87%

Section: Gas-only Conditionmentioning

confidence: 87%

Section: Gas-only Conditionmentioning

confidence: 95%

Section: Gas-only Conditionmentioning

confidence: 98%

“…For Fe-25Cr alloy (Fig. 1(a)), a very thin protective oxide scale was formed, identified as Cr2O3 in [16].…”

Section: Gas-only Conditionmentioning

confidence: 99%

See 3 more Smart Citations

Corrosion Behaviour of Fe-based and Ni-based Alloys in Wet CO2 Gas with and without Chloride Deposits at 750°C

Cai

Zhang

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Corrosion Behaviour of Fe-Based and Ni-Based Alloys in Wet CO2 Gas with and without Chloride Deposits at 750 °C

Cai,

Zhang,

Zhang

et al. 2023

High Temperature Corrosion of mater.

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Corrosion behaviours of Fe–25Cr, Fe–25Cr–2Mn–1Si, Fe–25Cr–20Ni, 310SS, Ni–25Cr, and Ni–25Cr–2Mn–1Si (all in wt%) with and without NaCl–KCl deposits in Ar–60%CO2–20%H2O gas at 750 °C were studied. Without salt deposits, Fe–25Cr performed protectively, while Fe–25Cr–20Ni and Ni–25Cr underwent breakaway oxidation with multilayered scales formed. Adding alloy elements Si + Mn increased the corrosion resistance of all alloys by forming additional Mn-rich oxides and silica. Surface deposits of NaCl–KCl accelerated corrosion, forming porous Fe-rich oxide nodules for Fe–25Cr and thick, porous scales and internal oxidation zones for all other alloys. The protective effect of Si + Mn alloying disappeared in the presence of chlorides. Limited intergranular carbides were observed for all alloys in the gas-only condition. The extent of carburisation increased with the presence of chloride deposits for all Fe-based alloys, but remained unchanged for Ni-based alloys. Corrosion of these alloys at 750 °C is compared with that at 650 °C. The effect of chlorides in volatilising metals at 750 °C is discussed.

show abstract

Corrosion behaviour of Fe-based austenitic and Ni-based alloys in Wet CO2 gas with and without chloride deposits at 650 °C

et al. 2023

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Effects of Sulphate Deposits on Corrosion Behaviour of Fe-Based Alloys in Wet CO2 Gas at 750 °C

Cited by 8 publications

References 65 publications

Corrosion Behaviour of Fe-based and Ni-based Alloys in Wet CO2 Gas with and without Chloride Deposits at 750°C

Corrosion Behaviour of Fe-based and Ni-based Alloys in Wet CO2 Gas with and without Chloride Deposits at 750°C

Corrosion Behaviour of Fe-Based and Ni-Based Alloys in Wet CO2 Gas with and without Chloride Deposits at 750 °C

Corrosion behaviour of Fe-based austenitic and Ni-based alloys in Wet CO2 gas with and without chloride deposits at 650 °C

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