Mechanical properties and corrosion resistance of normal strength and high strength steels in chloride solution

Authors

  • Ahmad Rahbar Ranji AmirKabir University of Technology, Department of Naval Architecture
  • Amir Hamed Zakeri Amirkabir University

DOI:

https://doi.org/10.3329/jname.v7i2.5309

Keywords:

Chloride solution, Corrosion rate, carbon steel, Tension test

Abstract

The corrosion resistance (weight loss) and mechanical properties (i.e. yield strength, ultimate strength and elongation) for three carbon steels, normal strength and high strength steels using tension test are investigated. The specimens are kept in chloride solution (20% NaCl) up to 240 hours. At every 48 hours, thickness and weight loss is measured and tension test is carried out. It was found that the susceptibility of the steels to corrosion based on their weight loss were identical prior to 144 hours, after that is accelerated for high strength steel. In addition, it was found that manganese (Mn) has reduced corrosion rate at early stage of corrosion. The change in mechanical properties by corrosion for all steels are the same, and ultimate strength is reduced, which for limit state design of aged structure should be taken into account.

DOI: 10.3329/jname.v7i2.5309

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Author Biographies

  • Ahmad Rahbar Ranji, AmirKabir University of Technology, Department of Naval Architecture
    Department of Naval Architecture, Assistant Professor
  • Amir Hamed Zakeri, Amirkabir University
    Naval Architecture

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Published

20.04.2011

Issue

Vol. 7 No. 2 (2010)

Section

Articles

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How to Cite

Mechanical properties and corrosion resistance of normal strength and high strength steels in chloride solution. (2011). Journal of Naval Architecture and Marine Engineering, 7(2), 94-100. https://doi.org/10.3329/jname.v7i2.5309