Surface morphology studies of low carbon steel treated in aqueous lignin

The effect of corrosion inhibition of low carbon steel in water based medium containing lignin was investigated via weight loss method. The evolution of surface morphology has been carried out for 7 to 42 days via optical microscopy (OM), scanning electron microscopy (SEM), energy-dispersive X-ray s...

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Main Authors:	Yahya, S., Othman, N.K., Daud, A.R., Jalar, A.
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/6692/ http://journalarticle.ukm.my/6692/ http://journalarticle.ukm.my/6692/1/16_S._Yahya.pdf

id	ukm-6692
recordtype	eprints
spelling	ukm-66922016-12-14T06:41:56Z http://journalarticle.ukm.my/6692/ Surface morphology studies of low carbon steel treated in aqueous lignin Yahya, S. Othman, N.K. Daud, A.R. Jalar, A. The effect of corrosion inhibition of low carbon steel in water based medium containing lignin was investigated via weight loss method. The evolution of surface morphology has been carried out for 7 to 42 days via optical microscopy (OM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron microscopy (XPS). Immersion of metal specimen without lignin shows that significant increase in the surface roughness. The longer the immersion time, the more the oxide crust formed. The surface degradation of metal specimen was well protected by immersion in lignin solution. A protective layer containing of lignin was formed on the surface of metal specimens after 7 and 21 days immersion. The corrosion inhibition gives about 13 and 53% inhibition for both 7 and 21 days immersion, respectively. The protective layers were spalling and separated from the metal surface after 42 days immersion in lignin solution possibly due to the increase in corrosion attack after long time immersion according to the increase in dissolved oxygen and may also due to the thermal mismatch between oxide and substrate. The adsorption of protective layer containing lignin was temporary adsorbed on the surface. Universiti Kebangsaan Malaysia 2013-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6692/1/16_S._Yahya.pdf Yahya, S. and Othman, N.K. and Daud, A.R. and Jalar, A. (2013) Surface morphology studies of low carbon steel treated in aqueous lignin. Sains Malaysiana, 42 (12). pp. 1793-1798. 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	The effect of corrosion inhibition of low carbon steel in water based medium containing lignin was investigated via weight loss method. The evolution of surface morphology has been carried out for 7 to 42 days via optical microscopy (OM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron microscopy (XPS). Immersion of metal specimen without lignin shows that significant increase in the surface roughness. The longer the immersion time, the more the oxide crust formed. The surface degradation of metal specimen was well protected by immersion in lignin solution. A protective layer containing of lignin was formed on the surface of metal specimens after 7 and 21 days immersion. The corrosion inhibition gives about 13 and 53% inhibition for both 7 and 21 days immersion, respectively. The protective layers were spalling and separated from the metal surface after 42 days immersion in lignin solution possibly due to the increase in corrosion attack after long time immersion according to the increase in dissolved oxygen and may also due to the thermal mismatch between oxide and substrate. The adsorption of protective layer containing lignin was temporary adsorbed on the surface.
format	Article
author	Yahya, S. Othman, N.K. Daud, A.R. Jalar, A.
spellingShingle	Yahya, S. Othman, N.K. Daud, A.R. Jalar, A. Surface morphology studies of low carbon steel treated in aqueous lignin
author_facet	Yahya, S. Othman, N.K. Daud, A.R. Jalar, A.
author_sort	Yahya, S.
title	Surface morphology studies of low carbon steel treated in aqueous lignin
title_short	Surface morphology studies of low carbon steel treated in aqueous lignin
title_full	Surface morphology studies of low carbon steel treated in aqueous lignin
title_fullStr	Surface morphology studies of low carbon steel treated in aqueous lignin
title_full_unstemmed	Surface morphology studies of low carbon steel treated in aqueous lignin
title_sort	surface morphology studies of low carbon steel treated in aqueous lignin
publisher	Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/6692/ http://journalarticle.ukm.my/6692/ http://journalarticle.ukm.my/6692/1/16_S._Yahya.pdf
first_indexed	2023-09-18T19:47:36Z
last_indexed	2023-09-18T19:47:36Z
_version_	1777406004956233728

Surface morphology studies of low carbon steel treated in aqueous lignin

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