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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 933Real Time Non-Destructive Testing Methods of...

Real Time Non-Destructive Testing Methods of Welding

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Abstract:

This work presents a review of the three most efficient non-destructive testing methods. The methods are radiography, eddy current and ultrasonic inspection. These particular techniques were chosen because they are able to cover most of the industrial needs for welding joint inspection. The aim of this work is to present the physical background of operation for the given methods, discuss their benefits, limitations, and typical areas of application, and compare them with each other. In the first part of this work, all three methods and their variations are described in detail with schemes and figures which represent their working principles. It appears that, although all the given methods can detect all types of flaws in welded joints, they have their specific limitations. For example, ultrasonic testing is able to detect defects only in certain directions. The eddy current technique is also sensitive to defect direction, but it can be applied for inspecting conductive materials only. The main flaw of radiography is the resolution: it is not usable for very fine defects. The second part of the work is for comparing the testing methods and for drawing the conclusions. The methods are compared according to the possible materials, defect types and their position, as well as the possible areas of application. This part gives the background for choosing a proper welding joint testing method for certain applications in the welding industry.

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Periodical:

Advanced Materials Research (Volume 933)

Pages:

109-116

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.933.109

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Online since:

May 2014

Authors:

Paul Kah*, Belinga Mvola, Jukka Martikainen, Raimo Suoranta

Keywords:

NDT, Real-Time, Real-Time Non-Destructive Testing

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* - Corresponding Author

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