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/ http://journalarticle.ukm.my/7263/ http://journalarticle.ukm.my/7263/1/14_Nurul_Atikah.pdf

id	ukm-7263
recordtype	eprints
spelling	ukm-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/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
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/ http://journalarticle.ukm.my/7263/ http://journalarticle.ukm.my/7263/1/14_Nurul_Atikah.pdf
first_indexed	2023-09-18T19:49:11Z
last_indexed	2023-09-18T19:49:11Z
_version_	1777406104623382528

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

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