Effective and back stress evolution upon cycling oxide-dispersion strengthened steels
International Journal of Fatigue(2023)
Abstract
•Origin of ODS steel cyclic strength is presented at elevated temperatures.•Cyclic stress is discussed in terms of the evolution of effective and back stresses.•Effects of applied strain amplitude and testing temperature are discussed in detail.•Effective and back stress trends are correlated with microstructural evolution.•Comparison is also made with non-ODS steel and other ODS variants.
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Key words
Low-cycle fatigue,Oxide-dispersion strengthened (ODS) steel,Effective stress,Back stress
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