Failure Analyses

Never Again: An Inspection of a Water Tower

After finding a water leak from its holding tank, the owner/operator of a town water tower reached out to Total Access Solutions Co. (TASC) to request an inspection. One TASC got on site, investigators were able to deduce more information about the potential cause(s) of the premature failure.

Condition Assessment of Aging Concrete Structures: Part 1

This two-part article reviews the corrosion risk assessment, structural considerations, and engineering solutions for the steel-reinforced structural elements of an aging concrete building. This building had exhibited accelerated corrosion in corrosive environments.

Corrosion Basics: Polymeric Materials

When compared with metals, polymeric materials tend to be more resistant to chloride ions and hydrochloric acid. However, polymeric materials are generally weaker and softer; less resistant to concentrated sulfuric and oxidizing acids and solvents; and subject to temperature limitations.

Scientists Discover Self-Healing, Anti-Corrosion Polymer

Based largely on its self-healing ability under corrosion attack, scientists believe they have found an anti-corrosion polymer that “represents a promising thermoplastic alternative to the thermosetting resins commonly used for metallic corrosion protection.

External Corrosion Sparked Canadian Gas Pipeline Rupture, Fire

In a newly released investigative report, the Transportation Safety Board of Canada says external corrosion led to a natural gas pipeline rupture near Fox Creek, Alberta, which caused an explosion and fire near a small community.

Texas Awards Grant to Evaluate Aging Highway Bridges

The Texas Department of Transportation issued a three-year grant to evaluate deteriorating and aging highway bridges. The approach includes non-destructive evaluation, on-site load testing, and computer simulations to help engineers determine the current bridge conditions.

Never Again: Dealing With the CUI Phenomenon

In this case study, significant corrosion was observed on lines supplying air handling units and swimming pools at a Dubai hotel. According to the client, the chilled water application system was installed three years prior and initially handled by a maintenance contractor before being handed over to the asset owner.

NIST Updates Investigation of Champlain Towers Collapse

In a recent National Construction Safety Team (NCST) Advisory Committee meeting, National Institute of Standards and Technology (NIST) investigators shared details of their investigation into the partial collapse of the Champlain Towers South building in Surfside, Florida, USA.

Can Cold Spray Coatings Protect Steel from Corrosive Chlorides?

To protect steel surfaces from corrosive forces, researchers at Sandia National Laboratories tested several nickel and nickel-based alloy cold spray coatings to determine their ability to offer corrosion protection for 304L stainless steel in chloride-rich environments.

How Stress Corrosion Cracking Led to Arizona Pipeline Blast

U.S. National Transportation Safety Board (NTSB) investigators believe a deadly natural-gas pipeline explosion in rural Arizona resulted from gaps in protective tape wrapping. This led to water leakage and corrosion and cracks along a seam weld.

Interview: How Coatings Inspection Needs Are Evolving

Michael Beamish, vice president and general manager at DeFelsko Corp., shares feedback he’s heard from coatings inspectors about their challenges in the field. In 2023, many of these needs revolve around increasing speed and reporting efficiency.

Advances in Protecting Pipelines from Hurricane Damage

With the Northern Hemisphere’s 2023 hurricane season in full swing and nearing its annual peak, emerging technologies and artificial intelligence are among new tools offering hope for superior pipeline protection against mighty storms.

Using Advanced Microbial Monitoring to Quantify Corrosion Risks

Quantifying microorganisms associated with microbiologically influenced corrosion (MIC) can provide insight into a system’s corrosion risk, as well as the efficacy of its management programs. This article features related insight from LuminUltra, which was a winner in the 2023 Materials Performance (MP) Corrosion Innovation of the Year Awards.

Novel Evaluation of a Marine Coating Failure

There are many methods to evaluate the corrosion of substrates and breakdown of protective coatings that are subject to wet-dry cycling in natural and accelerated environments. This article explores ways to predict failures without having to artificially harshen those conditions.

Piping Failure: Petroleum Refinery Fire Water Line

In this case study, a piping failure during fire water service operation was investigated using metallographic techniques. According to the author, the use of metallurgical investigations during inspection programs for petroleum and petrochemical plants can help to discover the root causes of corrosion.