High-temperature sulfidation of Al- and Mo-modified 310 stainless steel

W. Kai; C. T. Leu; J. P. Chu; P. Y. Lee

doi:10.4028/www.scientific.net/msf.251-254.625

High-temperature sulfidation of Al- and Mo-modified 310 stainless steel

W. Kai, C. T. Leu, J. P. Chu, P. Y. Lee

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

High-temperature sulfidation behavior of 310-stainless-steel-based alloys (containing various amounts of Al and Mo up to 10 at.%) was studied over the temperature range of 700-900°C in sulfur vapor under 0.01 and 0.1 atm. The corrosion kinetics followed the parabolic rate law and decreased with increasing Al and Mo contents. The scales formed on the alloys were complex and multilayered. The outer scale consisted of iron sulfide (with dissolved Cr), (Fe,Ni)₉S₈ and chromium sulfides (Cr₂S₃/Cr₃S₄ with dissolved Fe), while the inner layer was a heterophasic mixture of Cr₂S₃/Cr₃S₄ Fe_1.25Mo₆S_7.7, MoS₂, Al_0.55Mo₂S₄ and FeS. Platinum markers were found to be located at the interface between the inner and outer scales, suggesting that the outer scale grew by the outward transport of cations (Fe , Ni and Cr) and the inner scale grew by the inward transport of sulfur.

Original language	English
Pages (from-to)	625-632
Journal	Materials Science Forum
Volume	251-254
Issue number	PART 2
DOIs	https://doi.org/10.4028/www.scientific.net/msf.251-254.625
Publication status	Published - 1997
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

310 Stainless Steel
Al
Corrosion Kinetics
Mo
Sulfidation

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title = "High-temperature sulfidation of Al- and Mo-modified 310 stainless steel",

abstract = "High-temperature sulfidation behavior of 310-stainless-steel-based alloys (containing various amounts of Al and Mo up to 10 at.%) was studied over the temperature range of 700-900°C in sulfur vapor under 0.01 and 0.1 atm. The corrosion kinetics followed the parabolic rate law and decreased with increasing Al and Mo contents. The scales formed on the alloys were complex and multilayered. The outer scale consisted of iron sulfide (with dissolved Cr), (Fe,Ni)9S8 and chromium sulfides (Cr2S3/Cr3S4 with dissolved Fe), while the inner layer was a heterophasic mixture of Cr2S3/Cr3S4 Fe1.25Mo6S7.7, MoS2, Al0.55Mo2S4 and FeS. Platinum markers were found to be located at the interface between the inner and outer scales, suggesting that the outer scale grew by the outward transport of cations (Fe , Ni and Cr) and the inner scale grew by the inward transport of sulfur.",

keywords = "310 Stainless Steel, Al, Corrosion Kinetics, Mo, Sulfidation",

author = "W. Kai and Leu, {C. T.} and Chu, {J. P.} and Lee, {P. Y.}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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TY - JOUR

T1 - High-temperature sulfidation of Al- and Mo-modified 310 stainless steel

AU - Kai, W.

AU - Leu, C. T.

AU - Chu, J. P.

AU - Lee, P. Y.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 1997

Y1 - 1997

N2 - High-temperature sulfidation behavior of 310-stainless-steel-based alloys (containing various amounts of Al and Mo up to 10 at.%) was studied over the temperature range of 700-900°C in sulfur vapor under 0.01 and 0.1 atm. The corrosion kinetics followed the parabolic rate law and decreased with increasing Al and Mo contents. The scales formed on the alloys were complex and multilayered. The outer scale consisted of iron sulfide (with dissolved Cr), (Fe,Ni)9S8 and chromium sulfides (Cr2S3/Cr3S4 with dissolved Fe), while the inner layer was a heterophasic mixture of Cr2S3/Cr3S4 Fe1.25Mo6S7.7, MoS2, Al0.55Mo2S4 and FeS. Platinum markers were found to be located at the interface between the inner and outer scales, suggesting that the outer scale grew by the outward transport of cations (Fe , Ni and Cr) and the inner scale grew by the inward transport of sulfur.

AB - High-temperature sulfidation behavior of 310-stainless-steel-based alloys (containing various amounts of Al and Mo up to 10 at.%) was studied over the temperature range of 700-900°C in sulfur vapor under 0.01 and 0.1 atm. The corrosion kinetics followed the parabolic rate law and decreased with increasing Al and Mo contents. The scales formed on the alloys were complex and multilayered. The outer scale consisted of iron sulfide (with dissolved Cr), (Fe,Ni)9S8 and chromium sulfides (Cr2S3/Cr3S4 with dissolved Fe), while the inner layer was a heterophasic mixture of Cr2S3/Cr3S4 Fe1.25Mo6S7.7, MoS2, Al0.55Mo2S4 and FeS. Platinum markers were found to be located at the interface between the inner and outer scales, suggesting that the outer scale grew by the outward transport of cations (Fe , Ni and Cr) and the inner scale grew by the inward transport of sulfur.

KW - 310 Stainless Steel

KW - Al

KW - Corrosion Kinetics

KW - Mo

KW - Sulfidation

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U2 - 10.4028/www.scientific.net/msf.251-254.625

DO - 10.4028/www.scientific.net/msf.251-254.625

M3 - RGC 21 - Publication in refereed journal

SN - 0255-5476

VL - 251-254

SP - 625

EP - 632

JO - Materials Science Forum

JF - Materials Science Forum

IS - PART 2

ER -

High-temperature sulfidation of Al- and Mo-modified 310 stainless steel

Abstract

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