Abstract
We investigate the kinetics of failure in martensitic-aging steel during the concluding stages of deformation in statically elongated smooth specimens and in specimens with stress concentrators. Particular attention is devoted to the unique features encountered in the formation and onset of a separating macrocrack in the specimens being tested. Initially, using the methods of detailed metallography, we reproduce the pattern of prefailure zone formation, the crack trajectories subsequently passing through these zones. We have noted common and distinguishing features in damage formation in the steel being tested, with consideration given to the form of the stressed state.
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Translated from Problemy Prochnosti, No. 8, pp. 3–13, August, 1991.
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Lebedev, A.A., Chausov, N.G. & Zaitseva, L.V. Effect of stressed-state form on failure kinetics and crack resistance in martensitic-aging steel. 1. Study of the failure process stages. Strength Mater 23, 833–843 (1991). https://doi.org/10.1007/BF00772484
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DOI: https://doi.org/10.1007/BF00772484