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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Universiti Kebangsaan Malaysia
2013
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my-ukm.journal.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/ |
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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/6692/1/16_S._Yahya.pdf http://journalarticle.ukm.my/6692/ http://www.ukm.my/jsm/ |
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1643736858177306624 |
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13.211869 |