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The corrosion attack on stainless steel 316L and WC-Co in high sulphate-chloride ratio

Ismail, Azzura (2014) The corrosion attack on stainless steel 316L and WC-Co in high sulphate-chloride ratio. In: International Conference on X-Ray & Related Technique in Research and Industry (ICXRI2014), 11-13 August 2014, Johor Bahru, Johor.

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Abstract

Austenitic stainless steels and cermets alloy has been used extensively in many sectors due to their highly resistance to corrosion attack and excel in mechanical properties. However, in corrosive media both materials are susceptible to corrosion attack especially in seawater and high temperature. Cermet alloys are a combination of ceramic and metal. Therefore, cermets exist in high corrosion resistance in aqueous media ,,and the corrosion rate is complex to identify. This paper presents the corrosion mechanism of SS 3 16L and cermets alloy exposed to high concentration of sulphate in the salinity of seawater. The corrosion mechanism were characterized to breakdown potential (Eb), which are the potential once reaches a sufficiently positive value and also known as pitting potential. The Eb value of SS 3 16L in high sulphate are higher compared to WC-Co which elucidate that some anions such as sulphate behaves as inhibiting effect to SS 316L.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: SS3 16L; cermets alloy; sulphate; seawater
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Normajihan Abd. Rahman
Date Deposited: 07 Apr 2015 04:29
Last Modified: 07 Apr 2015 04:29
URI: http://eprints.uthm.edu.my/id/eprint/5905
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