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Corrosion performance of Inconel 625 in high sulphate content

Ismail, Azzura (2016) Corrosion performance of Inconel 625 in high sulphate content. IOP Conference Series: Materials Science and Engineering, 131. pp. 1-6. ISSN 1757899X

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Inconel 625 (UNS N06625) is a type of nickel-chromium-molybdenum alloy with excellent corrosion resistance in a wide range of corrosive media, being especially resistant to pitting and crevice corrosion. However, in aggressive environment, Inconel 625 will suffer corrosion attack like other metals. This research compared the corrosion performance of Inconel 625 when exposed to higher sulphate content compared to real seawater. The results reveal that Inconel 625 is excellent in resist the corrosion attack in seawater. However, at increasing temperature, the corrosion resistance of this metal decrease. The performance is same in seawater with high sulphate content at increasing temperature. It can be concluded that sulphate promote perforation on Inconel 625 and become aggressive agents that accelerate the corrosion attack.

Item Type: Article
Uncontrolled Keywords: Pitting corrosion; seawater; passivity; breakdown potentials; current density; passive film
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 25 Apr 2017 07:45
Last Modified: 25 Apr 2017 07:45
URI: http://eprints.uthm.edu.my/id/eprint/8934
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