5000 Series of Aluminum and Its Alloys Opaque by Inhibitors

Authors

  • Kalpana Mahato Assosiate Professor, Department of Science & Humanity
  • Bangshidhar goswami Assistant Professor, Department of Mechanical, RVS College of Engineering and Technology, Jamshedpur

Keywords:

5XXX series aluminum alloys, Corrosion, Inhibitors, Galvanic, Adsorption, Langmuir, Paint, Ceramic coatings, Pores

Abstract

5XXX series of alloys are prepared for marine applications. Light weight, strength, low maintenance and inherent tendency to form passivity surfacing have selected these alloys for manufacture of cargo ships. Anti corrosive paints have been traditional protections in these alloys.  Workers exposed to chromate residues during sanding of aircraft and recoating have increased risk of cancer to 250,000-fold higher. These paints are hazardous for aquatic life, so eco-friendly corrosion inhibitors are discovered. Galvanic corrosion is key point to failure in these alloys, which occurs in contact with other elements in saline water. Applicability of green inhibitors has been alternative researched globally to obey environmental legislation. Adsorption has been mechanism to reproduce performance of these inhibitors.

 

Author Biography

  • Kalpana Mahato, Assosiate Professor, Department of Science & Humanity
    RVS College of Engineering and Technology, Jamshedpur

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Published

2019-09-03

Issue

Vol. 6 No. 2 (2019)

Section

Articles

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