As the United States continues to expand its operations in challenging environments such as the Arctic and even space, the demand for alloys that can retain their strength under these conditions is increasingly urgent.
Mike Aughenbaugh, associate target market manager at Swagelok, explains many of the key differences between pitting and crevice corrosion, as well as strategies to remediate corrosion; prevent corrosion; and educate system operators about what to watch for.
Researchers at Texas A&M University are working with sponsorship support from Toyota Motor North America to develop a groundbreaking approach for predicting the long-term performance of automotive surface coatings.
An underground oil pipeline at a Spanish refinery was suffering from severe corrosion, and it would have incurred severe metal loss if left unchecked. Instead, a composite wrap solution allowed the customer to avoid a complete replacement.
Although the corrosion rate of bare steel tends to decrease with time in most cases, the difference in the corrosivity of different atmospheres for a particular alloy can be tremendous.
A research team from the University of Alberta has discovered what they believe is a groundbreaking material for high-temperature coatings. According to the researchers, it shows strong potential for applications such as hydrogen combustion engines.
Alternatives to nickel-based alloys can help the United States meet its clean energy goals, and scientists at the Argonne National Laboratory believe they are on a fast track to further discovery—including one new coating material with enhanced corrosion resistance.
Researchers at Penn State University, sponsored by the EPRI, are applying non-destructive, 3-D technology to study corrosion in the power plant industry. They are examining how contaminants in water cycles affect the integrity of steel pipes and tubing in power generation systems.
The National Center for Manufacturing Sciences (NCMS), a cross-industry technology development consortium, has developed a corrosion risk-based assessment tool to identify vulnerabilities early. In turn, it allows for more proactive mitigation strategies.
Composites can add extra protection for crevice corrosion and other corrosion at pipe supports. By installing the composite during construction, pipeline owners are able to prevent future problems associated with crevice corrosion, galvanic corrosion, and erosion.
AMPP’s SC 08—Metallic Material Selection and Testing, SC 05—Surface Preparation, and SC 26—Carbon Capture, Alternative Fuels, and Energy Storage are among the Standard Committee (SC) groups that have begun new projects in recent months.
The most common alloys used for exposure at high temperatures are the iron/nickel/chromium alloys, often referred to as stainless steels (SS). The materials used may be cast or wrought.
Naval Research Laboratory scientists recently unveiled the Cascaded Variational Quantum Eigensolver (CVQE) algorithm, which could become a powerful tool to investigate the physical properties of electronic systems for U.S. Department of Defense technologies.
Duplex stainless steels show excellent corrosion resistance and double the strength compared to standard austenitic steels. Composite and bi-metallic tubes are used where process conditions require properties and cost evaluations that cannot be met only by one material.
Although the primary focus of a corrosion engineer is on the chemical stability and corrosion resistance of these materials, it is critical to cooperate with other design team members familiar with the mechanical, physical, and other properties to ensure that the desired materials performance can be achieved.