Term of the Day

Active Metal

A metal is said to be an active metal when it reacts strongly and quickly with other elements due to the electrons in its structure and its ease of sharing the electrons with other elements.In chemistry, (Read on)

Past Terms: Acid Phosphate CorrosionCathodic Disbondment CoatingCleavage Plane

Latest Question

Applying a protective coating to metallic surfaces is the most effective method to mitigate corrosion damage. According to National Association of Corrosion Engineers (NACE)... (Read on)
Testing For Microbiologically Influenced Corrosion in Pipelines

Maintaining pipeline integrity is crucial in the oil & gas industry. When pipeline defects are detected, or pipeline failures occur, understanding the cause of these events is of utmost importance. Here we look at microbiologically influenced corrosion.
How a Liquid Nylon Coating Can Help Create an Impervious, Pinhole-Free Coating Barrier

A liquid nylon coating makes an excellent barrier for demanding applications in the aviation, marine and automotive industries.
What is Coatings Asset Management? Terry Greenfield Q&A

In an exclusive interview, corrosion expert Terry Greenfield defines Coatings Asset Management and how it informs better maintenance decisions, extends the service life of protective coatings and reduces downtime surprises. First in a series.
How to Plan Facility Coatings Condition Assessments

Proper pre-planning and deciding what data to collect are essential to the efficacy and cost effectiveness of both baseline surveys and ongoing inspections for coatings asset management programs.
8 Fundamentals of a Good Coatings Program

From understanding operating conditions to managing data and planning maintenance, here are best practices that are required to effectively manage coatings assets.
The Effects of Corrosion on the Shear Behavior of Materials

A problem that civil engineers currently face is corrosion of the steel reinforcements commonly found in aging infrastructure. Recent research examines how corrosion affects the shear strength of construction materials such as reinforced concrete.
Effect of Corrosion on a Material's Tensile Strength and Ductility

Discover the mechanical properties of metals used for construction materials and how corrosion influences the metal’s internal structure.
Case Study: Offshore Platform Implements Faster, Safer Corrosion Monitoring Tools

In this case study, oil and gas offshore facility operators confront the high cost and safety issues associated with retrieving corrosion monitoring and chemical injection equipment from their pipelines.
Corrosion and Electrical Interference in Buried Metallic Structures

Electrical interference is a threat that accelerates corrosion in buried metallic structures such as pipelines, tanks and vessels. Interference sources include cathodic protection systems, DC traction, HVDC systems and welding machines.
How to Select the Best Value Monitoring and Testing Tools

Substandard tools are insufficient for monitoring and testing pipelines or other equipment in the refining and process industries. The right tool facilitates inserting and removing coupon holders, chemical atomizers, or injection and sample quills.
How Corrosion Coupon Holders Can Preserve Your Valuable Assets

Metal corrosion is inevitable, but it can be monitored and measured with corrosion coupons. The right tool facilitates inserting and removing coupon holders.
Corrosion Fatigue of Welded Joints On Marine Offshore Structures

When combined, fatigue and corrosion have an exponentially worse effect on the reliability and lifespan on marine offshore structures and assets. Learn how to prevent or mitigate corrosion fatigue in welded joints subjected to cyclic stress.
Industry Experts Discuss Subsea Pipeline Corrosion Management

In this exclusive interview, three oil & gas industry corrosion experts discuss some of the key challenges in protecting subsea assets from corrosion, and the variety of methods and materials used to manage corrosion in such harsh environments.
Case Study: Large-scale Installation of Encapsulating Technology for Flange Protection

A case study highlights the use of a peelable, resealable membrane technology to protect more than 500 flanges from severe weathering and galvanic corrosion at a gas supplier site in Oman.
An Overview of Welded Joint Corrosion: Causes and Prevention Practices

Corrosion in welded joints is caused by a combination of manufacturing and metallurgical factors, including deficient weldment design, poor welding practice and residual stresses. Discover the best practices that minimize corrosion’s effect.
How to Stop a Ship’s Marine Corrosion in 3 Steps

Discover the three-step process to stop corrosion in metal ships.
Geoff Binks: How the Polymer Repair Market Has Changed in 50 Years

Geoff Binks has dedicated 50 years’ service to a major polymer coating and composite manufacturer. In this interview he discusses his vast experience in the coatings and maintenance sector.
Combating Wet Insulation and CUI with Aerogel Coatings

Moisture causes insulation to lose its effectiveness. The author’s experiment reveals how a duplex system that combines an aerogel coating with mineral wool delivers superior performance even when wet.
Common Misconceptions That Contribute to Premature Coating Failures

After taking a closer look at the necessity for communication within the industry concerning equipment design and its impact on application and inspection, we will discuss other important factors to consider.
Flexible Coatings for Protection of Marine Structures

Protecting offshore structures from corrosion and abrasion damage is an ongoing and costly challenge for operators. A polyurea coatings manufacturer discusses application of long-term protection with rapid return to service.
How Better Industry Teamwork Can Reduce Premature Coating Failures

Pitfalls often plague the success of coatings application projects, resulting in costly premature failures across numerous industries. We examine some solutions.
Video: When to Use Impressed Current Cathodic Protection

Impressed current cathodic protection (ICCP) is necessary when stray electrical currents threaten to corrode metal equipment. This video explains the whole process.
Choosing a Fit-for-Service Lining System for Process Vessels

Most process vessels in the oil and gas industry are constructed from carbon steel, which corrodes under harsh chemical, heat and pressure environments. Choosing a fitting protective vessel lining system involves meeting several industry requirements.
The Science of Anti-Corrosion Thin Films

Since the early 1900s, thin films have been explored for corrosion protection of metals. Through many decades of development, the thin films of today offer a range of unique characteristics for many types of industry applications.
Introduction to Managing Internal Corrosion in Process Vessels

Oil and gas process vessels are commonly subjected to aggressive chemicals and elevated levels of temperature and pressure. Those who manage these challenging assets must consider many factors in controlling internal corrosion.
CUI Detection Techniques for Process Pipelines (Part 2)

In Part 2 of this series, nondestructive testing techniques for detection of corrosion under insulation are explained and compared.
Best Practices for Cost-Effective Surface Salt Removal

This is the third article in the "Understanding the Impact of Soluble Salts in Corrosion" series. Here we offer a proven way to remove what is known and documented to be a leading cause of premature coating failures.
CUI Detection Techniques for Process Pipelines (Part 1)

In petrochemical refineries, the majority of pipeline failures are due to three corrosion mechanisms. This article series discusses how to survey to determine corrosion under insulation (CUI) prone equipment and plan corrosion control inspections.
Correcting and Preventing Concrete Corrosion

Corrosion of reinforcing steel in concrete is a worldwide problem that causes a range of economic, aesthetic and utilization issues. However, if corrosion effects are considered early in a project, structures can be designed to last.
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18/8 stainless steel is 304 grade stainless steel, which is the most widely used and flexible austenitic form of stainless steel. The numbers 18/8 represent the Read more

A controlled atmosphere is an environment that is artificially produced, in which the oxygen, nitrogen and carbon dioxide concentrations as well as the temperature Read more

Cathode interference is a phenomenon that usually occurs underground, in which any metallic material lying near a cathodically protected system tends to become Read more

Breaking stress is the maximum force that can be applied on a cross sectional area of a material in such a way that the material is unable to withstand any Read more

A butt weld is the simplest form of welding because it does not require cutting the material that needs to be welded into any particular shape. In this type of Read more
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