Materials Selection & Design

New Bacterial Process Developed to Heal Concrete

Using nanobiotechnology and a process known as solid-state fermentation, university researchers are making concrete that regenerates to repair cracks as they develop.

Iridium—The Ultimate in Corrosion Resistance

Iridium is a hard, brittle member of the so-called platinum group of metals in the periodic table. As an alloying element, it increases the corrosion resistance of titanium and palladium. We know that corrosion is a reaction between a material and its environment, so why not have a look at the most corrosion resistant metal in the periodic table.

Advanced Corrosion, Rust Drive Brake Pad Failures

A new study from the Global Brake Safety Council suggests the use of substandard materials and processes in automobile brake pads could be leading to accelerated failure modes. The council was formed in 2014 to advocate and raise awareness for high standards in brake safety while ensuring responsible manufacturing in the automotive industry.

Crawling Robot System to Detect Corrosion Under Insulation

Case studies were recently conducted to test the ability of a robotic system to potentially perform corrosion under insulation (CUI) inspections in oil, gas, and petrochemical environments.

Researchers Suggest New Method to Create Corrosion-Resistant Alloys

A new study suggests that a better protective oxide scale can be achieved in high-temperature Al alloys by controlling the size distribution of reactive element particles. These types of alloys are prevalent in many industrial sectors and applications.

New Ultrasonic Rolling Scanner for NDT of Concrete Structures

Funded by the European Commission, this new project involves the design of a portable, three-dimensional ultrasonic scanner for the nondestructive testing and evaluation of concrete in bridges and other building structures.

Study Examines Corrosive Soil Conditions Behind Water Main Breaks

Highlights of the study include data on pipe material break rates; the analysis of age and corrosion in failure modes; observations on pressure, delivery demands, and the effects of soil corrosivity; and new metrics for pipe replacement rates.

Some Corrosion and Metallurgy Issues in Coal Mines

Although corrosion is a common problem coal in mines, as are material failures, there has been limited documentation of these issues in the literature or at conferences.

Investigators Find Severe Corrosion in 2015 California Gas Leak

Independent investigators found extensive corrosion on the well casing that broke open at Southern California Gas Co.'s Aliso Canyon gas storage facility in October 2015. In the aftermath, engineering consultancy Blade Energy Partners was granted authority by the California Public Utilities Commission (CPUC) to conduct a root cause analysis of the metallurgical and fractographic aspects of the gas leak.

U.S. Air Force Targets New System to Evaluate Aircraft Coatings

A new system for evaluating coating performance is expected to accelerate the screening, qualification, and implementation of new aircraft coatings.

Thermal Imaging Used for Nondestructive Testing of Concrete Pillars

Russian scientists recently used a thermal imaging technique to study the corrosion of steel reinforcement within 14 reinforced concrete pillars.

Academic Study Seeks Policy Changes After Flint Water Crisis

University researchers issued findings on policy problems that led to the Flint water crisis and recommended legal changes to mitigate future concerns, including better communication on issues such as corrosion controls.

Geopolymer Solution for Sulfuric Acid Corrosion at Wastewater Plants

In a recently issued paper, Austrian researchers from TU Graz and the University of Graz discuss new materials that prevent damage from the microbiologically influenced corrosion of concrete.

Evaluating Internal Pipe Coatings with Electrochemical Impedance Spectroscopy

A new generation of high-temperature fusion-bonded epoxy coatings are being developed as a lower-cost alternative to alloy steels for protecting the internal surface of tubing, casing, flowlines, and pipelines.

Study: North American Waterways Becoming Saltier, More Alkaline

University researchers find significant increases in both salinization and alkalinization of U.S. streams and rivers, which can influence the water's corrosivity.