Corrosion Risk of Stainless Steel Facilities in the Coastal Regions of Taiwan

Abstract:

In Taiwan, many industrial facilities are located in coastal regions. A large portion of those facilities are constructed with stainless steel. Over time, sodium chloride from seawater vapor would deposit on the surface of the facilities and the chloride ions in it can lead to corrosion and cracks. This process is the so-called stress corrosion cracking (SCC). Theoretically, the SCC failures increase with the level of residual stress created by the welding and cold working processes. Practically, however, the corrosion risk is governed by various intrinsic and extrinsic factors that interact as a complex process. In this paper, we propose a dynamic approach for controlling the SCC risk. Firstly, we review some recent experimental work and filed investigations on stainless steel facilities in Taiwan. Following that, a dynamic risk management approach is explained and applied to develop a research roadmap for controlling the complex corrosion risk. In sum, we find that the best way to control the corrosion risk of the facilities is to remove the chlorides from the air by an ion exchange process accompanied with continuous monitoring and maintenance efforts during their operation life cycle.

• Periodical: Applied Mechanics and Materials (Volumes 479-480)
• Pages: 1097-1100
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.479-480.1097
• Online since: December 2013
• Authors: Tailin Huang, Heui Yung Chang
• Keywords: Coastal Regions, Dynamic Risk Management, Stainless Steel (SS), Stress Corrosion Cracking (SCC)

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