Effect of holding time on the corrosion potential of SS304

Purwanto, Hadi and Manshor, Hanisah (2012) Effect of holding time on the corrosion potential of SS304. Advanced Materials Research, 576. pp. 382-385. ISSN 1022-6680

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Abstract

Stainless steels suffer from classical sensitization when encounter at certain temperature which results in precipitation of chromium carbide along grain boundary with simultaneous depletion of chromium from near grain boundaries. This study focused on corrosion potential test at different sensitization condition. The degree of chromium carbide precipitation was measured based on thickness of grain boundary. With increasing holding time, the thickness of the chromium depletion zone also increases due to diffusion of chromium into solid solution. Corrosion potential test showed that the heated sample at 700ºC for 60 minutes resulted in highest corrosion current density and shifted its corrosion potential to more active potential. The potential tend to increase with increasing the degree of chromium carbide precipitation.

Item Type:	Article (Journal)
Additional Information:	5804/26431
Uncontrolled Keywords:	Chromium Carbide, Corrosion Potential, Stainless Steel, Sulfuric Acid
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Hadi Purwanto
Date Deposited:	20 Nov 2012 08:07
Last Modified:	20 Nov 2012 08:07
URI:	http://irep.iium.edu.my/id/eprint/26431

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