The characteristic changes of the cyclic plastic stress–strain response of stainless steel and superalloys derived from the analysis of hysteresis loop at different temperatures are reported. The evolution of the surface relief in strain controlled cycling is documented using high resolution SEM and TEM. The mechanisms leading to cyclic strain localization, formation of surface relief, fatigue crack initiation and early crack growth are discussed.
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The support of the present work by the grants Nos. 13-23652S and P204/11/1453 of the Grant Agency of the Czech Republic is acknowledged.
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Translated from Problemy Prochnosti, No. 5, pp. 27 – 34, September – October, 2014.
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Polák, J., Obrtlík, K. & Petrenec, M. Cyclic Plastic Response and Damage in Materials for High Temperature Applications*. Strength Mater 46, 601–607 (2014). https://doi.org/10.1007/s11223-014-9588-9
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DOI: https://doi.org/10.1007/s11223-014-9588-9