Corrosion Protection at the Nanoscale

Susai Rajendran, Saeid Kakooei, Mahdi Yeganeh, Yongxin Li, Tuan Anh Nguyen

• Publisher: Elsevier
• Year: 2020
• Print ISBN: 9780128193594
• eBook ISBN: 9780128193600
• Topic: Technology & Engineering
• Subtopic: Nanoscience
• Index: Technology & Engineering

Corrosion Protection at the Nanoscale explores fundamental concepts on how metals can be protected at the nanoscale by using both nanomaterials-based solutions, including nanoalloys, noninhibitors and nanocoatings. It is an important reference resource for both materials scientists and engineers wanting to find ways to create an efficient corrosion prevention strategy. Nanostructure materials have been widely used in many products, such as print electronics, contact, interconnection, implant, nanosensors and display units to lessen the impact of corrosion. Traditional methods for protection of metals include various techniques, such as coatings, inhibitors, electrochemical methods (anodic and cathodic protections), metallurgical design are covered in this book.Nanomaterials-based protective methods can offer many advantages over their traditional counterparts, such as protection for early-stage, higher corrosion resistance, better corrosion control. This book also outlines these advantages and discusses the challenges of implementing nanomaterials as corrosion protection agents on a wide scale.- Explains the main methods of detection, monitoring, testing, measurement and simulation of corrosion at the nanoscale- Explores how metals can be protected at the nanoscale using nanotechnology and nanomaterials- Discusses the major challenges of detecting and preventing corrosion at the nanoscale

Part I

Corrosion and protection at nanoscale

Outline

1. Chapter 1. Corrosion protection at the nanoscale: an introduction
2. Chapter 2. Nanomaterials for cathodic protection of metals

Chapter 1

Corrosion protection at the nanoscale

An introduction

Mahdi Yeganeh ¹ , Tuan Anh Nguyen ² , Susai Rajendran ³ , Saeid Kakooei ⁴ , and Yongxin Li ^{5 1} Department of Materials Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan, Iran ² Institute for Tropical Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam ³ Corrosion Research Centre, Department of Chemistry, St Antony's College of Arts and Sciences for Women, Dindigul, Tamil Nadu, India ⁴ Mechanical Engineering Department, Centre for Corrosion Research, Universiti Teknologi Petronas, Seri Iskandar, Perak Darul Ridzuan, Malaysia ⁵ College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, PR China

Abstract

Based on the study of NACE International, the global cost of corrosion is estimated to be US$2.5 trillion in 2016. As reported, implementing corrosion prevention best practices could save 15%–35% of this global cost of damage. In general, metals can be protected by various conventional methods, such as protective coatings, corrosion inhibitors, electrochemical methods (anodic and cathodic protections), and metallurgical design. Recently, nanotechnology can offer the new routes to protect metal effectively at the nanoscale for early stage. This chapter aims to explain how metals can be protected at the nanoscale. It covers the new techniques using nanoalloys, nanoinhibitors, nanocoatings, nanogenerators, nanosensors, and photogenerated cathodic protection.

Keywords

Corrosion protection; Nanoalloys; Nanocoatings; Nanogenerators; Nanoinhibitors; Nanosensors; Photogenerated cathodic protection

Based on the study of NACE International, the global cost of corrosion is estimated to be US$2.5 trillion in 2016. As reported, implementing corrosion prevention best practices could save 15%–35% of this global cost of damage. In general, metals can be protected by various conventional methods, such as protective coatings, corrosion inhibitors, electrochemical methods (anodic and cathodic protections), and metallurgical design. Recently, nanotechnology can offer the new routes to protect metal effectively at the nanoscale for early stage. In addition, new techniques based on nanomaterials (such as nanoalloys, nanoinhibitors, nanocoatings, nanogenerators, nanosensors, photogenerated cathodic protection) can provide the higher corrosion resistance, better corrosion control, and controlled release of nanoinhibitors [1]. However, usefulness of these nanomaterials strongly depends on the corrosive medium and the proper application of them in the appropriate situations.

In case of nanoalloys (nanostructured alloys), the formation of nanocrystalline metal phases within the metallic matrices provided the high corrosion resistance [1–7], high oxidation resistance [8,9], strong ductility enhancement [10], high hardness [11], and high wear resistance [12].

For the nanoinhibitors (nano-sized inhibitors), smart nanocontainers have been used to load and release the embedded inhibitors under external or internal stimuli (e.g., pH-controlled release, ion exchange control, redox-responsive control of release, light-responsive controlled release, and release under mechanical rapture [13,14]). Different kinds of inhibitors could be loaded into the smart nanocontainers, such as benzotriazole [15], mercaptobenzothiazole [16,17], mercaptobenzimidazole [18], hydroxyquinoline [19], dodecylamine [20], molybdate salts [21], cerium salts [22], fluoride salt [23], and zinc salts [24]. As the nanosized particles, nanoinhibitors can rapidly respond to the local environmental changes due to the corrosion processes [25–28].

Regarding the nanocoatings (nanocomposite/nanostructured coatings), incorporation of nanomaterials into the coating matrices could enhance the coating performance. At the interface between coating and metal substrate, nanoparticles can improve the coating adhesion and prevent the trend for the coating to blister or delaminate [29–31]. In addition, to enhance the barrier effect (against the corrosive species) and thermal/mechanical properties, nanoparticles have been used as nanofillers to reinforce both organic and metallic coatings. These polymeric nanocomposite coatings could be fabricated using various polymeric matrices, such as epoxy [29,30],...

Table of contents

• Cover image
• Title page
• Table of Contents
• Copyright
• Contributors
• Part I. Corrosion and protection at nanoscale
• Part II. Protection of metal using nanostructured alloys
• Part III. Protection of metal using nanoinhibitors
• Part IV. Protection of metal using nanocoatings
• Index