Low cycle fatigue behaviour of Grade 92 steel weld joints

In the present study, low cycle fatigue (LCF) behaviour of tungsten (W) alloyed 9Cr steel (Grade 92 steel) base metal and its weld joints has been investigated. LCF tests on both base metal and weld joint were conducted under fully reversed, total axial strain control mode employing a triangular waveform at 823 K, under a constant strain rate of 3 × 10−3 s−1 with strain amplitudes varying from ±0.25% to ±1%. Both base metal and weld joint...