A new paper in « Case study in Engineering Failure Analysis » published on ScienceDirect.com.
The failure analysis of an insert ring of a burner in a 156 MW gas turbine, made of 20Cr32Ni1Nb alloy is presented. Normally, the useful service life of these parts under ideal conditions is about 30000 hours. However, more likely fracture and failure could be observed in5000-hour inspections, which resulted in the early and premature replacement of these parts. This paper brings out the detail of investigation carried out.