PLANT EXTRACTS AS GREEN INHIBITORS OF CORROSION OF METALLIC MATERIALS - A REVIEW

Language: ENPages: 71–75

Assistant Prof. Mariana Ilieva, PhD

Department of Materials Science and Technolgy “Angel Kanchev” Univesity of Ruse

Abstract: The paper reviews corrosion protection by inhibitors, and more specifically - by green corrosion inhibitors. The conventional corrosion inhibitors are usually toxic to the living organisms, and their use leads to environmental pollution, killing different biological species. Thus, a need for environmentally friendly inhibitors had appeared in recent years. Nowadays, there are numerous reports on the possibility of using plant extract as corrosion inhibitors. When used as corrosion inhibitors, plant extracts give the advantage of environmental safety. These corrosion inhibitors are called green, as they do not pose environmental risks. However, as plants chemical composition is dependent on different non-controllable factors, the chemical composition of plants extracts is also non-controllable, and this requires careful testing of plants extracts for their inhibitory properties.

Keywords: Corrosion, Inhibitors, Protection, Green, Toxicity, Metals

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