Dynamic strain aging behavior of 10Cr steel under low cycle fatigue at 650°C

The low cycle fatigue behavior of a 10Cr–2W–0.7Mo–3Co–NbV steel with 80 ppm of B additions was studied at elevated temperatures of 600 and 650°C. The steel after normalizing and tempering at 770°C was tested under fully reversed tension-compression loading with the total strain amplitude controlled from ±0.2 to ±1.0% at temperatures of 600 and 650°C. It was revealed that the steel exhibits a positive temperature dependence of both the cyclic...