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Abstract

This paper presents an electromagnetic testing method for the inspection of cracks in an overlay welding area. The overlay welding method is usually used to repair failure welds in a structure in which the components are difficult and expensive to replace. The inspection system uses an air-core exciting coil to produce an electromagnetic field in the overlay welding area and a linearly integrated giant magnetoresistance (GMR) sensor array (LIGiS) to measure the distribution of the electromagnetic field around the cracks; thus, the cracks can be inspected. The LIGiS is fabricated using 32 GMR sensor elements arrayed at 0.6 mm intervals. Artificial cracks with different sizes, orientations, and locations on the crisp surface of an overlay welding sample are tested to verify the effectiveness of the proposed method.

Keywords

LIGiS eddy current testing nondestructive testing overlay welding

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References

Chu

H.A.

Young

M.C.

Chu

H.C.

Tsay

L.W.

and Chen

, Hot cracking susceptibility of Alloy 52M weld overlays onto CF8 stainless steel, Journal of Nuclear Materials433 (2013), 419–423.

Kasban

Zahran

Arafa

El-Kordy

Elaraby

S.M.S.

and Abd El-Samie

F.E.

, Welding defect detection from radiography images with a cepstral approach, NDT & E International44 (2011), 226–231.

Zapata

Vilar

and Ruiz

, An adaptive network-based fuzzy inference system for classification of welding defects, NDT & E International43(3) (2010), 191–199.

Mirapeix

Garcia-Allende

P.B.

Cobo

Conde

O.M.

and Lopez-Higuera

J.M.

, Real-time arc-welding defect detection and classification with principal component analysis and artificial neural networks, NDT & E International40 (2007), 315–323.

Dennis

Latiolais

and Thigpen

, Weld Overlay Examination Using Ultrasonic Phased Array Technology, in: 6th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components, Oct. 2007, Budapest, Hungary.

Diaz

A.A.

Crawford

S.L.

Cinson

A.D.

and Anderson

M.T.

, An Evaluation of Ultrasonic Phased Array Testing for Reactor Piping System Components Containing Dissimilar Metal Welds, U.S. Nuclear Regulatory Commission, Technical Letter Report, JCN N6398, Task 2A, Nov. 2009.

Todorov

Nagy

Levesque

Ames

and Na

, Inspection of laser welds with array eddy current technique, in: AIP Conference Proceeding 1511, 1065, 2013, doi: 10.1063/1.4789161.

Mook

Michel

and Simonin

, Low frequency eddy current arrays with video clock, in: 10th European Conference and Exhibition on Non-destructive Testing, June 7-11, 2010, Moscow, Russia.

Yamamoto

Takagi

and Uchimoto

, Extraction of crack indications from ECT signals using signal phase characteristics of a multi-coil probe, International Journal of Applied Electromagnetics and Mechanics33 (2010), 1179–1184.

10.

Angani

C.S.

Kim

and Lee

, Non-destructive testing of inclusions in cold-rolled strip steels using hall and giant magnetoresistance sensor arrays, International Journal of Applied Electromagnetics and Mechanics45 (2014), 747–753.

11.

Kim

Lee

and Park

, Detection and evaluation of backside crack in spot-welding component of heat-resistant alloy using electromagnetic field distortion, International Journal of Applied Electromagnetics and Mechanics (2016), doi: 10.3233/JAE-162146.

12.

Jun

and Lee

, Nondestructive evaluation of a crack on austenitic stainless steel using a sheet type induced current and a Hall sensor array, Journal of Mechanical Science and Technology22 (2008), 1684–1691.

13.

Hwang

Lee

and Kwon

, The application of a differential-type Hall sensors array to the nondestructive testing of express train wheels, NDT & E International42 (2009), 34–41.

Electromagnetic testing of a welding area using a magnetic sensor array

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