Community Research and Development Information Service - CORDIS

New method of non-destructive testing

"Thermotest" is a new non-destructive testing device developed by scientists at a Russian university that accurately detects defects without harming the sample.
New method of non-destructive testing
Non-destructive testing (NDT) concerns the detection and evaluation of material flaws. These flaws can be in the form of cracks, unwanted inclusions leftover from the casting process or inhomogeneities in structural properties. Material flaws can result in loss of strength, shortened product lifetimes and even component failure. It is imperative that whatever method is employed, it must not damage the material being examined.

NDT methods are used during the production process as a measure of quality control. They are also applied during service visits to ensure the continued operational safety of a given component.

A new device for NDT has been developed by engineers at a Russian university that boasts substantial advantages over current methods. The method is called "Thermotest" and works by measuring minute differences in thermoelectromotive forces between the sample and a standard. The process has the potential to be fully automated and can easily be incorporated into a larger quality control system at the factory level.

The device has been designed to be extremely light (just one and a half kilograms). Power consumption is also minimal (60 Watts). Most importantly, the material loss rate is almost negligible at 0.05% when performing de-carbonation testing.

The industries in which "Thermotest" can have the greatest impact are those of machine building, bearings and tooling. Furthermore, companies that service (i.e. maintain and repair) products from these industries will also be interested in this new technology. For those interested in learning more about "Thermotest", a fully tested prototype is available.
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