Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Combating corrosion could aid industrial safety

03.09.2003


A new technique to detect localised corrosion in steel and other metals could help industry avoid major repair bills. In some cases, it could even help prevent serious safety problems in industrial plants and other building structures.



This technique differs from traditional methods as it is able to detect corrosion on a much smaller level. This means that preventative action can be taken earlier, saving money, time and possibly lives.

Funded by the Swindon-based Engineering and Physical Sciences Research Council (EPSRC), materials researchers at Sheffield Hallam University are now using the UK-developed technique to solve real industrial problems.


Corrosion can affect the structural integrity and durability of metals and alloys used in pipework, tanks and elsewhere. Although overall metal loss may be insignificant (e.g. 5%), localised corrosion can still lead to pitting which can lead on to the cracking and eventual fracture that cause leakages or more serious failures. Historically, there has been a lack of techniques able to evaluate this type of metal loss as conventional detection methods assume that corrosion takes place uniformly.

Recently, novel scanning techniques have been developed which are capable of providing useful information on local corrosion. Use of these techniques is growing in central Europe, the Far East and North America. The aim of the Sheffield Hallam initiative was to develop the UK’s capability in this field through the use of the Scanning Vibrating Electrode Technique (SVET).

SVET involves scanning a vibrating electrode over the surface of a material immersed in the test solution, whilst measuring the local corrosion activity taking place at the metal-solution interface (a picture of the SVET set-up is available see details below). It differs from traditional methods because it measures this activity at a microscopic level, enabling both the rate and the distribution of localised corrosion damage to be measured. The use of a vibrating electrode also offers improved signal output and resolution over other ‘new-generation’ non-vibrating probe techniques. The project team has already used the SVET system to carry out a number of interdisciplinary initiatives, many involving collaboration with industry.

The team is led by Professor Bob Akid, Director of the University’s Centre for Corrosion Technology. Professor Akid says: “Detecting corrosion as early as possible is of vital importance to industry. By improving industry’s ability to predict the onset of damage, SVET will enable effective forecasting of maintenance regimes”.

Jane Reck | alfa
Further information:
http://www.epsrc.ac.uk/

More articles from Process Engineering:

nachricht New manufacturing process for SiC power devices opens market to more competition
14.09.2017 | North Carolina State University

nachricht Quick, Precise, but not Cold
17.05.2017 | Fraunhofer-Institut für Lasertechnik ILT

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>