Article Dans Une Revue Science Année : 2008

Observations of intergranular stres corrosion cracking in a grain mapped polycrystal

Résumé

Nondestructive three-dimensional mapping of grain shape, crystallographic orientation, and grain boundary geometry by diffraction contrast tomography (DCT) provides opportunities for the study of the interaction between intergranular stress corrosion cracking and microstructure. A stress corrosion crack was grown through a volume of sensitized austenitic stainless steel mapped with DCT and observed in situ by synchrotron tomography. Several sensitization-resistant crack-bridging boundaries were identified, and although they have special geometric properties, they are not the twin variant boundaries usually maximized during grain boundary engineering.

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Dates et versions

hal-00433962 , version 1 (20-11-2009)

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Citer

Andrew King, Greg Johnson, Dirk L Engelberg, Wolfgang Ludwig, James Marrow, et al.. Observations of intergranular stres corrosion cracking in a grain mapped polycrystal. Science, 2008, 321 (5887), pp.382-385. ⟨10.1126/science.1156211⟩. ⟨hal-00433962⟩
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