Corrosion inhibition of 6061/Al-15 vol. pct. SiC(p) composite in hydrochloric acid solution

Document Type

News Article


Corrosion is the destruction of a material because of its reaction with the surrounding environment. It is a spontaneous process caused due to chemical, electrochemical or biochemical interactions between the metal and its surrounding. Effects of corrosion are very worse since they can cause health and social problems, cause large losses and expenditure in industrial sector and also threaten the long term existence of metal resources in the world. Due to these reasons corrosion studies have gained a lot of importance and awareness is increasing among the people.

Aluminium composites show low density, high strength and high stiffness and due to this they are used in aerospace, military, electronic, automobiles and food industries.

Hydrochloric acid is used in industries for cleaning, pickling of metals, descaling etc. it is proven to be more efficient, economical and trouble free when compared with other mineral acids. But it acts as a corrosive.

The study of inhibitory action of compounds (heterocyclic organic compounds , ionic liquids etc) on the corrosion of an aluminium composite 6061/Al-15 vol. pct. SiCp in hydrochloric acid solution will be carried out using electrochemical impedance technique and potentiodynamic polarisation method in the temperature range 303K-323K in the presence of different concentrations of the inhibitor.

The nature of inhibitor, adsorption mechanism, kinetic and thermodynamic parameters will be studied and discussed in detail.

Surface morphological studies will be carried out using scanning electron microscopy (SEM) and atomic force microscopy (AFM) techniques.

  1. https://doi.org/10.1080/00084433.2022.2058155
  2. https://doi.org/10.1016/j.cdc.2021.100826
  3. https://doi.org/10.1007/s40735-021-00604-6
  4. https://doi.org/10.3103/S1068375522030024

Publication Date

Spring 10-1-2022