Nanocracks in Austenitic Chromium-Nickel Structural Steel Thin Films

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The development of structural changes at the nanoscale in the austenitic chromium-nickel steels used in the nuclear power industry is studied after Low-Cycle Fatigue (LCF) deformation. The reasons and mechanism of the nanocracks formation due to the structural relaxation in the regions of localized residual internal stresses in slip bands and grain boundaries are discussed. It showed that the locations and distribution of LCF slip bands in the process of microplastic deformation depend on the material’s microstructure.

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Materials Science Forum (Volume 1161)

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3-7

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October 2025

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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