Non-Destructive Characterization of Welding Defects Using MMM and ACFM Methods

Ya Tian Gao; Li Hua Wang; Xiu Jie Miao; Jian Cheng Leng

doi:10.4028/www.scientific.net/AMR.881-883.1773

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Fuzzy Prediction of Molten Iron Silicon Content in BF Based on Hierarchical System
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New Method of Distinguishing X-Ray Diffraction Curves about Laser Structure
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Non-Destructive Characterization of Welding Defects Using MMM and ACFM Methods
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Numerical Simulation and Die Optimization Design of Extrusion Process for a Complex Hollow Aluminum Alloy Multi-Hole Die
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Activity Calculation Model for Oxygen Converter Final Slag
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Numerical Simulation of Air Gap Formation in Water-Cooled Mold Casting
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Application of Electron Probe Microanalyzer (EPMA) to Depositional Environment Identification of Sedimentary Rock
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 881-883Non-Destructive Characterization of Welding...

Non-Destructive Characterization of Welding Defects Using MMM and ACFM Methods

Abstract:

Nondestructive inspection and evaluation of welds is very important to ensure the safety of industrial products. In this study, the metal magnetic memory (MMM) and alternating current field measurement (ACFM) methods are utilized to characterize welding defects of a butt welded tubular specimen respectively. The results show that the MMM method has potentials in evaluating both early stress concentration and macro-defects but only qualitatively, while the ACFM method can provide crack depth sizing information quantitatively, suggesting that the two methods should be combined for nondestructive evaluation welding defects to improve the detection efficiency and accuracy.