corrosion – TechConnect Briefs

Electrochemical Sensors for Gas Pipelines Using Ion Conducting Membranes

Ziomek-Moroz M., National Energy Technology Laboratory, US

Electrochemical sensors are regularly used for the detection of chemical species in many industrial operations. The most common example is potentiometric measurement of pH, and oxygen quantity (e.g. the Clark electrode) and corrosion sensors also [...]

A nanocrystalline materials production technique for simultaneously improving several properties

Wang S.G., Institute of Metal Research, Chinese Academy of Sciences, CN

The concept of nanocrystalline metallic materials was put forward by Prof. Gleiter in 1980s [1]. From then on, nanocrystlline metallic materials have been extensively studied by the scientists all over the world [2]. The first [...]

Inert, Corrosion Resistant CVD Coating for Oil and Gas Service

Mattzela J.B., Smith D., Yuan M., Higgins M., Barone G., SilcoTek Corporation, US

Estimates of the cost of corrosion within US industries often exceed $150 billion. Challenges within the often complicated production techniques of the oil and gas industry have led to increased efforts to control these costs. [...]

Membrane Dehydrators for Efficient Water Contamination Control in Lubricating and Hydraulic Fluid

Majumdar S., DiNetta L.C., Compact Membrane Systems, Inc., US

Ingression of water or ambient moisture over time into industrial lubrication and hydraulic fluid systems causes major operational and maintenance problems. Water can be present in such systems as free, dispersed and dissolved water. The [...]

Manufacturing of thermally stable nanocrystalline aluminum alloys and studying their corrosion behavior in Arabian Gulf seawater

Sherif E.M., King Saud University, SA

The as-received metal powders were used to synthesis bulk nanocrystalline Al; Al-10%Cu; and Al-10%Cu-5%Ti alloys using mechanical alloying and high frequency induction heat sintering (HFIHS). The corrosion behavior of these materials in natural Arabian Gulf [...]

A proposal of AC corrosion mechanism in cathodic protection

Brenna A., Diamanti M.V., Lazzari L., Ormellese M., Politecnico di Milano, IT

The research proposes an electrochemical mechanism of AC-corrosion in CP condition. Electrochemical tests were carried out on carbon steel in simulated soil conditions to identify AC corrosion risk related parameters during cathodic polarization, like AC [...]

On-demand release of corrosion-inhibiting molecules from layerd double hydroxide film formed on magnesium alloy

Ishizaki T., Teshima K., Saito N., National Institute of Advanced Industrial Science and Technology (AIST), JP

Magnesium is one of the lightest engineering materials. Thus, it is expected that magnesium and its alloys are applied to aerospace, aircraft, automobile, and railway. However, they have a defect which is extremely low corrosion [...]

Nano-scale TEM studies of the passive film and the chloride-induced depassivation of carbon steel in concrete

Ghods P., Isgor O.B., Li J., Carpenter G., McRae G., Gu G.P., Carleton University, CA

In the highly alkaline environment of concrete, carbon steel rebar is protected against corrosion by a passive iron oxide film. The partial or complete loss of the protective oxide film, known as depassivation, leads increased [...]

Use of different natural Extracts from Tropical plants as Green Inhibitors for Metals

Bogaerts W., Vuthi T., Phong P.H., Hanh P.H., Linh D.C., Addul R., University of Leuven, BE

The authors present an overview of the work & results obtained in the framework of a bilateral cooperation program between Belgium and Vietnam to discover new environmentally-friendly corrosion inhibitors or ‘harmless corrosion inhibitors to nature” [...]

Use of different natural Extracts from Tropical plants as Green Inhibitors for Metals

Bogaerts W., Vuthi T., Phong P.H., Hanh P.H., Linh D.C., Addul R., University of Leuven, BE

The authors present an overview of the work & results obtained in the framework of a bilateral cooperation program between Belgium and Vietnam to discover new environmentally-friendly corrosion inhibitors or ‘harmless corrosion inhibitors to nature” [...]