Ghosh D.,NDT and Metallurgy Group |
Ray S.,NDT and Metallurgy Group |
Mandal A.,Central Research Facility CRF |
Roy H.,NDT and Metallurgy Group
High Temperature Materials and Processes | Year: 2015
This paper highlights a case study of typical premature failure of a radiant platen superheater tube of 210 MW thermal power plant boiler. Visual examination, dimensional measurement and chemical analysis, are conducted as part of the investigations. Apart from these, metallographic analysis and fractography are also conducted to ascertain the probable cause of failure. Finally it has been concluded that the premature failure of the super heater tube can be attributed to localized creep at high temperature. The corrective actions has also been suggested to avoid this type of failure in near future. © 2015 Walter De Gruyter. All rights reserved.