Welcome to the early July 2020 Corrosionpedia News Roundup. Corrosionpedia releases a fresh news roundup every other week to provide a summary of the most important headlines in the world of corrosion prevention, monitoring and science. This week, we take a look at two new inspection technologies, one below the sea and one above. Other stories include a new microcapsule production technology used for anti-corrosive coatings, a new abrasion-resistant paint, and corrosion repair on a major bridge.

Corrosion Detection Vehicle Uses Fresh Technology

A new subsea inspection technology created by Impact Subsea, a sensor technology manufacturer in the United Kingdom, is now being offered by Video Ray, a large manufacturer of remotely operated vehicles, on some of their remotely operated vehicles. Video Ray's new technology will be an option on the Mission Specialist Defender models. The new technology created by Impact Subsea is called ISFMD, with the “FMD” standing for flooded member detection. Rather than using radioactive materials when inspecting subsea infrastructure like other subsea inspection methods, ISFMD technology uses ultrasonic waves to detect flaws such as corrosion. The ISFMD technology pairs with computer software so that the extent of the corrosion, cracking or other flaws can be visualized and measured.

Successful Autonomous Drone Inspection

Altera Infrastructure invited Scout Drone Inspection to perform an autonomous drone inspection of one of its oil storage tanks located on a sea vessel. The drone used advanced video technology and artificial intelligence to create a visual image of the tank, determine whether that visualization has any cracks, and measure the extent of those cracks. The drone was able to do this autonomously through the use of light detection and ranging technology, which allowed it to navigate within the tank without collision.

Autonomous tank inspection is highly desirable in the industry because of the time and safety costs associated with traditional inspection methods. Typically, an inspection will involve sending workers into the tank to perform the inspections manually, but using an autonomous drone inspection eliminates this. Scout Drone Inspection hopes to be able to develop autonomous drone tank inspections for subsurface corrosion detection as well.

New Paint Promises to Protect Bulk Containers from Corrosion

Nippon Paint, a global paint and coatings manufacturer based out of Japan, has recently released a new coating for the marine industry intended to provide better protection for bulk shipping containers. The new paint has been named Neoguard Toughness, and it provides several unique advantages for bulk containers. The key benefit of Neoguard Toughness is its ability to withstand impact and abrasion. Bulk containers are constantly being placed into contact with both objects outside and contents inside that have the potential to damage their coatings. If these coatings are damaged, oxidation and corrosion of the container can occur. Neoguard Toughness is formulated to have excellent resistance to this type of coating damage, allowing for bulk containers to last longer without corroding.

Ford Urges Use of OEM Parts for Corrosion-Resistant Aluminum F-150 Repair

Ford Motor Company released a statement saying that the company only approves repairs made by automotive repair facilities that use OEM rivets when making repairs to aluminum car bodies manufactured by Ford. Ford also said in the statement that the body shops doing the repairs are prohibited from reusing flow-drill screws. The statement highlighted that many of the different types of rivets, such as blind rivets and solid rivets, are not interchangeable and should be used only where designated by Ford.

Ford began releasing aluminum body F-150 pickup trucks in 2015. One of the reasons for the switch, in addition to weight reduction, was to fight the rust and corrosion issues that have normally plagued steel pickup trucks. Ford continues to issue guidance as repair facilities become accustomed to working with aluminum materials on vehicles.

New Anti-Corrosion Coating Technology Developed

The Autonomous Materials Systems Group at the Beckman Institute for Advanced Science and Technology has recently found a new way to create microcapsules for coating solutions. Previous methods for producing microcapsules, tiny particles of a liquid substance that are encompassed by a solid exterior, had quality concerns and did not produce microcapsules rapidly. The new method developed by the team at Beckman also gives the creator greater control of the size of the microcapsule.

The intention is to use the microcapsules produced by the new method to prevent corrosion. These microcapsules can be filled with anti-corrosive solutions, and the exterior of the capsule can be set to rupture at a certain pH level. When a coating of these microcapsules is applied to a substrate and the pH level reaches a certain threshold, the anti-corrosive capsules will rupture and release their content, preventing further corrosion.

Corrosion Repair and Prevention Project Set to Begin for Major Oregon Bridge

A major repair and corrosion prevention project on the Yaquina Bay Bridge in Newport, Oregon began in June 2020. In the weeks before project kickoff there were several inspections to determine the magnitude of the repairs and the prevention methods needed to ensure that the life of the bridge can be extended as long as possible. Inspection methods include a team of rope access engineers and inspectors going places where other inspection methods cannot reach. The project includes making several repairs and replacing the cathodic protection (CP) materials used to prevent corrosion on the bridge. Officials said that traffic will be minimally impacted because most of the work will occur under the bridge and during non-peak hours.