Application of FIB technique to study of early fatigue damage in polycrystals

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Abstract

Focused ion beam (FIB) technique together with other advanced microscopic techniques were applied to study early microstructural changes leading to crack initiation in fatigued polycrystals. Dislocation structures of persistent slip bands (PSBs) and surrounding matrix were revealed in the bulk of surface grains by electron channelling contrast imaging (ECCI) technique on the FIB cross-sections. True shape of extrusions, intrusions and the path of initiated fatigue cracks were assessed in three dimensions by serial FIB cross-sectioning (FIB tomography). Advantageous potential of FIB technique and its other possible utilization in fatigue crack initiation studies in polycrystals are highlighted. © 2010 IOP Publishing Ltd.

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APA

Man, J., Weidner, A., Kuběna, I., Vystavěl, T., Skrotzki, W., & Polák, J. (2010). Application of FIB technique to study of early fatigue damage in polycrystals. In Journal of Physics: Conference Series (Vol. 240). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/240/1/012058

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