Contents

**Preface XI**

#### **Section 1 Introduction 1**


## **Section 3 Recent Applications of Corrosion Inhibitors 143**


Preface

benefit from this collection.

The most undesirable and noticeable deterioration of different kinds of materials is corro‐ sion of metals, which is defined by ISO (International Organization for Standardization) as "physicochemical interaction between a metal and its environment that results in changes in the properties of the metal, and which may lead to significant impairment of the function of the metal, the environment, or the technical system, of which these form a part." Total costs of corrosion include "the design and construction or manufacturing, the cost of corrosion related maintenance, repair and rehabilitation, and the cost of depreciation or replacement of structures that have become unusable as a result of corrosion" and are estimated to be US \$2.5 trillion that corresponds to approximately 4% of the global GDP. To protect metals or alloys from corrosion, some methods can be used such as isolating the structure from the aggressive media (using of coatings or film-forming chemicals) or compensating the loss of electrons (corrosion is oxidation process) from the corroded structure (e.g., cathodic protec‐ tion by impressed current or by using sacrificial anodes). The use of corrosion inhibitors may include organic and inorganic compounds that adsorb on the metallic structure to iso‐ late it from its surrounding media to decrease oxidation-reduction processes. Organic inhib‐ itors create their inhibition by adsorbing their molecules on the metal or alloy surface to form a protective layer. Alternatively, inorganic inhibitors act as anodic inhibitors and their

metallic atoms are enclosed in the film to improve its corrosion resistance.

This book collects new developments about corrosion inhibitors and their recent usages. I would like to appreciate all the contributors of this book and thank them for their high-qual‐ ity manuscripts. I wish the open access publishing of this book would help all researchers to

> **Dr. Mahmood Aliofkhazraei** Tarbiat Modares University, Iran


## Preface

**Section 3 Recent Applications of Corrosion Inhibitors 143**

Chapter 7 **Opuntia ficus-indica (Nopal Extract) as Green Inhibitor for Corrosion Protection in Industrial Steels 145**

Herrera Hernández and Jorge Morales Hernández

**Natural, and Industrial Environments 165**

Juan Ricardo Salinas Martinez

**Inhibitor for Mild Steel 201**

**Chloride Medium 181**

Azwan Mat Lazim

**VI** Contents

Aroonwilas

Chapter 8 **Vapor Inhibitors for Corrosion Protection in Humid and Saline,**

Chapter 9 **Dimethyl Sulfoxide-Treated Starch of Dioescorea hispida as a**

Chapter 10 **Theobroma cacao Peel Extract as the Eco-Friendly Corrosion**

Yuli Yetri, Gunawarman, Emriadi and Novesar Jamarun

**Inhibitors for Amine-Based CO2 Absorption Process 225** Sureshkumar Srinivasan, Amornvadee Veawab and Adisorn

Chapter 11 **Screening and Evaluating Environmentally-Friendly Corrosion**

Araceli Mandujano Ruiz, Luis-Enrique Corona Almazán, Héctor

Nelson Cheng, Benjamin Valdez Salas, Michael Schorr Wiener and

**Green Corrosion Inhibitor for Low Carbon Steel in Sodium**

Norinsan Kamil Othman, Emee Marina Salleh, Zulhusni Dasuki and

The most undesirable and noticeable deterioration of different kinds of materials is corro‐ sion of metals, which is defined by ISO (International Organization for Standardization) as "physicochemical interaction between a metal and its environment that results in changes in the properties of the metal, and which may lead to significant impairment of the function of the metal, the environment, or the technical system, of which these form a part." Total costs of corrosion include "the design and construction or manufacturing, the cost of corrosion related maintenance, repair and rehabilitation, and the cost of depreciation or replacement of structures that have become unusable as a result of corrosion" and are estimated to be US \$2.5 trillion that corresponds to approximately 4% of the global GDP. To protect metals or alloys from corrosion, some methods can be used such as isolating the structure from the aggressive media (using of coatings or film-forming chemicals) or compensating the loss of electrons (corrosion is oxidation process) from the corroded structure (e.g., cathodic protec‐ tion by impressed current or by using sacrificial anodes). The use of corrosion inhibitors may include organic and inorganic compounds that adsorb on the metallic structure to iso‐ late it from its surrounding media to decrease oxidation-reduction processes. Organic inhib‐ itors create their inhibition by adsorbing their molecules on the metal or alloy surface to form a protective layer. Alternatively, inorganic inhibitors act as anodic inhibitors and their metallic atoms are enclosed in the film to improve its corrosion resistance.

This book collects new developments about corrosion inhibitors and their recent usages. I would like to appreciate all the contributors of this book and thank them for their high-qual‐ ity manuscripts. I wish the open access publishing of this book would help all researchers to benefit from this collection.

> **Dr. Mahmood Aliofkhazraei** Tarbiat Modares University, Iran

**Section 1**

**Introduction**

**Section 1**
