This presentation deals with organic inhibitors on the corrosion of steel and zinc.In the19th century, as the result of technological innovations, revolution in the industry, advancement in the science field, there was a growth in agricultural, industrial production, economic expansion and tremendous changes. People have changed the way of manufacturing processes during this time. All the hand works shifted to the machines.
As a result of this revolution, the products were quite cheaper. Mild steel and zinc are very active in the presence of aggressive environment. In the presence of moisture and air, they give respective oxide. It results in the deterioration of metals take place that results in the failures in the industrial equipment in oil industries, gas industries, and water circulating cooling systems. These are main disadvantages of mild steel and zinc. The cause of corrosion of mild steel and zinc and the corrosion control is having critical fundamental, industrial and academic concern .In the existed literature various type of various research groups developed inhibitors.
The developed inhibitors, few of them satisfied all the requirements of the industries and society. Even though they are toxic in nature, they aren’t showing inhibition at high temperature. In addition, no one has discussed complete mechanism of corrosion inhibition. In the present study, more attention is given to developing eco-friendly inhibitors. The complete mechanism of inhibition action of these inhibitors were evaluated by using practical and theoretical studies like weight loss, polarization, impedance, activation parameters, thermodynamic parameters. Scanning electron microscope is used to do morphological studies of the inhibitor. The quantum chemical studies are carried out to correlate the theoretical studies with experimental work of corrosion inhibitors. All the results were agreeing with each other. All the developed inhibitors find applications in industries.
Table of Contents
1. Introduction
2. Literature Survey
3. Objectives of the Work
4. Methodology
Objectives and Topics of the Study
This research aims to identify and evaluate a new class of non-toxic organic inhibitors to effectively control the corrosion of steel and zinc in acidic media. The study seeks to establish the fundamental corrosion mechanisms through a combination of rigorous experimental testing and theoretical analytical methods, addressing current limitations in corrosion protection techniques.
- Investigation of electro-active compounds for potential corrosion inhibition action.
- Classification and grouping of inhibitors based on structure, functional groups, and solubility.
- Comparative analysis of inhibition efficiency across different chemical groups.
- Implementation of quantum and thermodynamic studies to understand inhibition mechanisms.
- Surface morphology characterization of corroded specimens using spectroscopic techniques.
- Optimization of inhibitor concentrations to achieve maximum protection efficiency.
Excerpt from the Book
Introduction
Mild steel and zinc are most widely used engineering materials especially for structural applications.
They are exposed to various aggressive environments during their usage and hence undergo corrosion.
Corrosion of steel and zinc materials and their protection have become fundamental, academic and industrial concern
The corrosion of metals received a prime attention of scientists since it has many serious consequences including economic, health, safety, technological and cultural consequences all over the world.
If economic loss alone is considered, the costs associated with corrosion can be estimated with reasonable accuracy. The typical estimations were US $275 billion dollars in1998 and US$364 billion dollars in 2005, draining about 3.1% of the GDP from the US economy [1-6].
These numbers alone justify much greater need for development of effective corrosion protection techniques
Various methods have been employed in controlling their corrosion. The use of chemical inhibitors is one of the best practical methods in controlling the corrosion.
Summary of Chapters
Introduction: This chapter highlights the widespread industrial application of steel and zinc, the severe economic impact of metal corrosion, and the necessity of developing safer, non-toxic chemical inhibitors.
Literature Survey: This section provides a comprehensive review of existing research regarding the use of various organic compounds, drugs, and heterocyclic derivatives as corrosion inhibitors for steel and zinc in different acidic environments.
Objectives of the Work: This chapter outlines the specific research goals, focusing on the need to overcome existing drawbacks such as toxicity and the lack of established theoretical mechanisms for current inhibitors.
Methodology: This chapter details the experimental and analytical procedures, including specimen preparation, electrochemical measurements, and the application of quantum studies to investigate inhibition efficiency.
Key Terms
Corrosion, Mild Steel, Zinc, Organic Inhibitors, Acidic Medium, Inhibition Efficiency, Adsorption, Electrochemical Impedance Spectroscopy, Tafel Extrapolation, Quantum Chemical Studies, Molecular Dynamics, Surface Morphology, Scanning Electron Microscopy, Non-toxic Inhibitors, Electrolyte
Frequently Asked Questions
What is the primary focus of this research?
The research focuses on investigating new, non-toxic organic inhibitors to control the corrosion of mild steel and zinc in acidic environments.
What are the central themes of this study?
The themes include material science, the economic impact of corrosion, development of environmentally friendly inhibitors, and the synthesis of theoretical and experimental methods to understand inhibition mechanisms.
What is the main objective of the proposed work?
The primary objective is to find a new class of non-toxic inhibitors and establish their corrosion mechanism through analytical and theoretical methods.
Which scientific methods are employed?
The study utilizes weight loss tests, potentiodynamic polarization, linear polarization, electrochemical impedance spectroscopy, and quantum chemical/molecular dynamics simulations.
What does the main body of the work cover?
The main body reviews existing literature, defines research objectives, and details the methodological framework for evaluating the inhibition performance and surface interaction of new compounds.
Which keywords define this work?
Key terms include corrosion inhibition, mild steel, zinc, organic inhibitors, and electrochemical study.
Why is there a trend to move away from chromates and cyanides?
These traditional inhibitors are being replaced due to their high toxicity and the environmental pollution associated with their usage.
How is the efficiency of an inhibitor determined in this study?
Efficiency is evaluated through electrochemical techniques, including mass loss measurements, Tafel plots, and impedance spectroscopy, alongside surface analysis via scanning electron microscopy.
- Citar trabajo
- Narayana Hebbar (Autor), 2017, A Study on th Effect of Organic Inhibitors on the Corrosion of Steel and Zinc, Múnich, GRIN Verlag, https://www.grin.com/document/377109
