Effect of surface treatment on the morphological aspect of metal dusting on stainless steel

Chao Yi Lin; Chia Hao Chang; Wen Ta Tsai

Effect of surface treatment on the morphological aspect of metal dusting on stainless steel

Chao Yi Lin, Chia Hao Chang, Wen Ta Tsai

Research output: Contribution to conference › Paper › peer-review

Abstract

The effect of surface treatment on the susceptibility to metal dusting of 304L stainless steel (SS) exposed in a mixed gas of CO/CO ₂ = 100/1 in the temperature ranging from 500-700? was investigated. Thermogravimetric analyses (TGA) and long-term exposure tests in the above environments followed by surface morphological examination and cross section chemical composition and microstructure analyses were conducted. The results showed that the decomposition of CO gas to form graphite and nano-sized carbon filaments was affected by the surface pre-treatment applied on the 304L SS. Enhanced carbon deposition but with a significant resistance to metal dusting was found on the sand-blasted 304L SS. The existence of an initial non-protective oxide on the pre-oxidized 304L SS surface, however, gave rise to the most susceptibility to dusting-associated localized attack. The roles of different surface treatments on the reactions between 304L SS and the exposing gas environment were discussed.

Original language	English
Publication status	Published - 2004 Dec 1
Event	European Corrosion Conference: Long Term Prediction and Modelling of Corrosion, EUROCORR 2004 - Nice, France Duration: 2004 Sept 12 → 2004 Sept 16

Other

Other	European Corrosion Conference: Long Term Prediction and Modelling of Corrosion, EUROCORR 2004
Country/Territory	France
City	Nice
Period	04-09-12 → 04-09-16

All Science Journal Classification (ASJC) codes

Surfaces, Coatings and Films

Cite this

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title = "Effect of surface treatment on the morphological aspect of metal dusting on stainless steel",

abstract = "The effect of surface treatment on the susceptibility to metal dusting of 304L stainless steel (SS) exposed in a mixed gas of CO/CO 2 = 100/1 in the temperature ranging from 500-700? was investigated. Thermogravimetric analyses (TGA) and long-term exposure tests in the above environments followed by surface morphological examination and cross section chemical composition and microstructure analyses were conducted. The results showed that the decomposition of CO gas to form graphite and nano-sized carbon filaments was affected by the surface pre-treatment applied on the 304L SS. Enhanced carbon deposition but with a significant resistance to metal dusting was found on the sand-blasted 304L SS. The existence of an initial non-protective oxide on the pre-oxidized 304L SS surface, however, gave rise to the most susceptibility to dusting-associated localized attack. The roles of different surface treatments on the reactions between 304L SS and the exposing gas environment were discussed.",

author = "Lin, {Chao Yi} and Chang, {Chia Hao} and Tsai, {Wen Ta}",

year = "2004",

month = dec,

day = "1",

language = "English",

note = "European Corrosion Conference: Long Term Prediction and Modelling of Corrosion, EUROCORR 2004 ; Conference date: 12-09-2004 Through 16-09-2004",

}

TY - CONF

T1 - Effect of surface treatment on the morphological aspect of metal dusting on stainless steel

AU - Lin, Chao Yi

AU - Chang, Chia Hao

AU - Tsai, Wen Ta

PY - 2004/12/1

Y1 - 2004/12/1

N2 - The effect of surface treatment on the susceptibility to metal dusting of 304L stainless steel (SS) exposed in a mixed gas of CO/CO 2 = 100/1 in the temperature ranging from 500-700? was investigated. Thermogravimetric analyses (TGA) and long-term exposure tests in the above environments followed by surface morphological examination and cross section chemical composition and microstructure analyses were conducted. The results showed that the decomposition of CO gas to form graphite and nano-sized carbon filaments was affected by the surface pre-treatment applied on the 304L SS. Enhanced carbon deposition but with a significant resistance to metal dusting was found on the sand-blasted 304L SS. The existence of an initial non-protective oxide on the pre-oxidized 304L SS surface, however, gave rise to the most susceptibility to dusting-associated localized attack. The roles of different surface treatments on the reactions between 304L SS and the exposing gas environment were discussed.

AB - The effect of surface treatment on the susceptibility to metal dusting of 304L stainless steel (SS) exposed in a mixed gas of CO/CO 2 = 100/1 in the temperature ranging from 500-700? was investigated. Thermogravimetric analyses (TGA) and long-term exposure tests in the above environments followed by surface morphological examination and cross section chemical composition and microstructure analyses were conducted. The results showed that the decomposition of CO gas to form graphite and nano-sized carbon filaments was affected by the surface pre-treatment applied on the 304L SS. Enhanced carbon deposition but with a significant resistance to metal dusting was found on the sand-blasted 304L SS. The existence of an initial non-protective oxide on the pre-oxidized 304L SS surface, however, gave rise to the most susceptibility to dusting-associated localized attack. The roles of different surface treatments on the reactions between 304L SS and the exposing gas environment were discussed.

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UR - http://www.scopus.com/inward/citedby.url?scp=84867267010&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84867267010

T2 - European Corrosion Conference: Long Term Prediction and Modelling of Corrosion, EUROCORR 2004

Y2 - 12 September 2004 through 16 September 2004

ER -

Effect of surface treatment on the morphological aspect of metal dusting on stainless steel

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