Elevated temperature low cycle fatigue behaviour of Haynes 282 and its correlation with microstructure – Effect of ageing conditions

In this paper, total strain-controlled high temperature (760 °C) low cycle fatigue (HTLCF) behaviour (at 0.5% strain amplitude) of a new γ′-strengthened wrought Ni based superalloy (Haynes 282) for various ageing conditions is presented for the first time, emphasizing the microstructural effects. Haynes 282 is a promising material for hot gas path components of ultra-supercritical steam turbines due to its adequate fatigue property at elevated...