Header menu link for other important links
X
Characterization of pulsed eddy current NDE in metallic materials through in-situ monitoring of tensile testing
Published in
2012
Volume: 36
   
Pages: 108 - 114
Abstract
Tensile test experiments were in-situ monitored using Pulsed Eddy Current (PEC) NDE technique for metallic materials. Materials such as Manganese Stainless steel (Mn-SS), SS304, Copper and Aluminum were employed in this study. Experiments were carried out to characterize the changes in PEC response due to the effect of loading pattern either continuous or interrupted loading or due to the effect of loading rate. Plastic deformation induced in the material increases the PEC signal response for all materials studied. Mn-SS material provided the best PEC response due to its property of phase transformation from austenitic (paramagnetic) to martensitic (ferromagnetic) phase as the plastic deformation increases. The effect of loading rate does not appear to influence the PEC response of materials, when the data was analyzed as a percentage of fracture strain. The effect of prior cold work could be identified using the PEC technique by characterizing the slope of PEC signal response in the elastic region when the material was subjected to an interrupted loading/unloading pattern. Offline PEC Measurements were taken along the length of the failed and the plastically deformed specimens. It was observed that from the PEC measurements, the impending failure location could be ascertained. These results suggest that PEC technique could be used as a NDE technique for material characterization and failure location identification. © 2012 The authors and IOS Press. All rights reserved.
About the journal
JournalStudies in Applied Electromagnetics and Mechanics
ISSN13837281
Open AccessNo
Concepts (27)
  •  related image
    AUSTENITIC
  •  related image
    DEFORMED SPECIMEN
  •  related image
    ELASTIC REGION
  •  related image
    FAILURE LOCATIONS
  •  related image
    FRACTURE STRAIN
  •  related image
    In-situ
  •  related image
    IN-SITU MONITORING
  •  related image
    LOADING PATTERNS
  •  related image
    Loading rate
  •  related image
    Material characterizations
  •  related image
    METALLIC MATERIAL
  •  related image
    MONITORING DAMAGE
  •  related image
    Offline
  •  related image
    PRIOR COLD WORK
  •  related image
    PULSED EDDY CURRENT
  •  related image
    SIGNAL RESPONSE
  •  related image
    Tensile tests
  •  related image
    Characterization
  •  related image
    Eddy current testing
  •  related image
    Eddy currents
  •  related image
    Experiments
  •  related image
    Manganese
  •  related image
    Materials
  •  related image
    Paramagnetism
  •  related image
    Plastic deformation
  •  related image
    Tensile testing
  •  related image
    Loading