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Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC

Austenitic stainless steels of grade 304 were exposed to dry (Ar-75%CO2) and wet (Ar-75%CO2-12%H2O) environments at 700oC. This experimental setup involved horizontal tube furnace connected to CO2 gas and water vapour facilities. X-ray diffraction (XRD) technique, variable pressure-scanning electron...

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Main Authors: Nurul Atikah Shariff,, Azman Jalar,, Muhamad Izhar Sahri,, Norinsan Kamil Othman,
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2014
Online Access:http://journalarticle.ukm.my/7263/1/14_Nurul_Atikah.pdf
http://journalarticle.ukm.my/7263/
http://www.ukm.my/jsm/
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spelling my-ukm.journal.72632016-12-14T06:43:34Z http://journalarticle.ukm.my/7263/ Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC Nurul Atikah Shariff, Azman Jalar, Muhamad Izhar Sahri, Norinsan Kamil Othman, Austenitic stainless steels of grade 304 were exposed to dry (Ar-75%CO2) and wet (Ar-75%CO2-12%H2O) environments at 700oC. This experimental setup involved horizontal tube furnace connected to CO2 gas and water vapour facilities. X-ray diffraction (XRD) technique, variable pressure-scanning electron microscope (VP-SEM) and optical microscope techniques were used to characterize the products of corrosion. The results of XRD showed that the phase of oxide layers consists of Cr2O3 and NiCr2O4 in dry CO2, meanwhile Fe2O3, Cr2O3, Fe0.56Ni0.34, Fe3O4 were identified in wet condition after 50 h. Adding 12%H2O in Ar-75%CO2 leads significantly in weight change occurred at 10 h exposure. However, after 20 h, the weight gain was decreased due to spallation of the oxide scale. The addition of water vapour accelerates the oxidation rate on the steel than that in dry condition. Morphologies and growth kinetics of these oxides vary with reaction condition. The oxidation behaviour at different times of exposure and the effect of water vapour were discussed in correlation with the microstructure of the oxides. Universiti Kebangsaan Malaysia 2014-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7263/1/14_Nurul_Atikah.pdf Nurul Atikah Shariff, and Azman Jalar, and Muhamad Izhar Sahri, and Norinsan Kamil Othman, (2014) Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC. Sains Malaysiana, 43 (7). pp. 1069-1075. ISSN 0126-6039 http://www.ukm.my/jsm/
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description Austenitic stainless steels of grade 304 were exposed to dry (Ar-75%CO2) and wet (Ar-75%CO2-12%H2O) environments at 700oC. This experimental setup involved horizontal tube furnace connected to CO2 gas and water vapour facilities. X-ray diffraction (XRD) technique, variable pressure-scanning electron microscope (VP-SEM) and optical microscope techniques were used to characterize the products of corrosion. The results of XRD showed that the phase of oxide layers consists of Cr2O3 and NiCr2O4 in dry CO2, meanwhile Fe2O3, Cr2O3, Fe0.56Ni0.34, Fe3O4 were identified in wet condition after 50 h. Adding 12%H2O in Ar-75%CO2 leads significantly in weight change occurred at 10 h exposure. However, after 20 h, the weight gain was decreased due to spallation of the oxide scale. The addition of water vapour accelerates the oxidation rate on the steel than that in dry condition. Morphologies and growth kinetics of these oxides vary with reaction condition. The oxidation behaviour at different times of exposure and the effect of water vapour were discussed in correlation with the microstructure of the oxides.
format Article
author Nurul Atikah Shariff,
Azman Jalar,
Muhamad Izhar Sahri,
Norinsan Kamil Othman,
spellingShingle Nurul Atikah Shariff,
Azman Jalar,
Muhamad Izhar Sahri,
Norinsan Kamil Othman,
Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC
author_facet Nurul Atikah Shariff,
Azman Jalar,
Muhamad Izhar Sahri,
Norinsan Kamil Othman,
author_sort Nurul Atikah Shariff,
title Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC
title_short Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC
title_full Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC
title_fullStr Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC
title_full_unstemmed Effect of high temperature corrosion on austenitic stainless steel grade 304 in CO2 gas at 700ºC
title_sort effect of high temperature corrosion on austenitic stainless steel grade 304 in co2 gas at 700ºc
publisher Universiti Kebangsaan Malaysia
publishDate 2014
url http://journalarticle.ukm.my/7263/1/14_Nurul_Atikah.pdf
http://journalarticle.ukm.my/7263/
http://www.ukm.my/jsm/
_version_ 1643737061929254912
score 13.211869

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