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Evaluation of multiple stress corrosion crack interactions by in-situ Digital Image Correlation
Université de Lyon, France.
Université de Lyon, France.
Université de Lyon, France.
RISE - Research Institutes of Sweden, Materials and Production, KIMAB. (Institut de la Corrosion)
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2017 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 128, p. 120-129Article in journal (Refereed) Published
Abstract [en]

Digital Image Correlation (DIC), Acoustic Emission and Electrochemical Noise measurements were applied to study the growth of multiple intergranular cracks as a colony on an Alloy 600 in a tetrathionate solution. Cracks exceeding 55 μm in length and 0.45 μm in opening were successfully detected by DIC. Moreover, crack population was classified into initiating, active and dormant cracks, active population being the larger one. The emergence and intensification of interactions produced a modification on the colony growth behavior. They range from a mostly surface crack propagation (in the absence of interactions), to in depth propagation predominantly governed by crack shielding

Place, publisher, year, edition, pages
Elsevier Ltd , 2017. Vol. 128, p. 120-129
Keywords [en]
Acoustic emission, Crack interactions, Digital image correlation, Electrochemical noise, Multiple cracking, Stress corrosion cracking, Acoustic emissions, Acoustic noise, Corrosion, Cracks, Image analysis, Residual stresses, Strain measurement, Surface defects, Crack interaction, D. digital image correlation (DIC), Depth propagation, Digital image correlations, Electrochemical noise measurements, Intergranular crack, Acoustic emission testing
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40009DOI: 10.1016/j.corsci.2017.09.001OAI: oai:DiVA.org:ri-40009DiVA, id: diva2:1359428
Note

 Funding details: National Radio Research Agency, MATETPRO ANR-12-RMNP-0020; Funding text 1: The authors would like to acknowledge the National French Research Agency (ANR) for its financial support under contract MATETPRO ANR-12-RMNP-0020 (ECCOFIC project). The authors would like also to thank our partners AREVA, ANDRA and MISTRAS by their participation into the fruitful discussion during this work.

Available from: 2019-10-09 Created: 2019-10-09 Last updated: 2019-10-09Bibliographically approved

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