Call For Paper Volume:4 Issue:10 Oct'2017 |

Dye Penetrant Inspection Technique of Turbine Rotating Component

Publication Date : 26/08/2015



Author(s) :

Alexander Nana Kwesi Agyenim-Boateng , Edward Kumi Diawuo , Psalmiel Nana Nti Agyei.


Volume/Issue :
Volume 2
,
Issue 10
(08 - 2015)



Abstract :

Reliable performance of mechanical component or structure depends on pre-service quality of the component and in-service degradation of component under operating conditions. The role of non-destructive evaluation (NDE) in ensuring pre-service quality and also monitoring in-service degradation to avoid premature failure of the components or structures is ever increasing. Critical gas turbine rotating component, such as turbine blades, compressor disks, spacers and cooling fan blades are subjected to cyclic stresses during engine start-up, operation and shut-down. The lifetime of these components are usually established on the basis of probabilistic crack initiation criterion for a known fracture-critical location. Therefore periodic inspections are carried out to detect probable cracks and to prevent sudden failure. The dye penetrant testing technique basically revealed the cracked, fractured and sound parts of the steam turbine blades which did not completely fracture during the inspection period.


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Dye Penetrant Inspection Technique of Turbine Rotating Component

August 25, 2015