ENIQ 2nd Pilot Study - Summary and Conclusions

The paper presents a summary of reverse engineering of complex defects (crack-like EDM notches and other surface-breaking defects) performed on reference blocks used to validate the phased array inspection on low-pressure turbine components manufactured by Alstom/ABB and Siemens/Parsons. The scope of this program, which started in 1998 and is on going, is to assess the capability demonstration and procedure improvement for large-scale in-situ inspections. The following technical aspects are presented: reverse engineering of fatigue and stress corrosion cracks using Kubotek-Key Creator software, importing files in Imagine 3D ray tracing and ultrasonic simulation software and phased array results on 3-D crack-like EDM notches. A comparison with real UT data from serviceinduced cracks is also presented and discussed. Based on these results, Inspection and Maintenance Services – Ontario Power Generation incorporated this technology in feasibility studies and capability demonstration programs for low-pressure turbine components. 3-D data plotting into part and scanning animation are also presented and discussed.

ERIKSSON Arne;  WHITTLE John; 

SELDIS Thomas; 

2012-07-19

Publications Office of the European Union

JRC33233

978-92-79-06107-3,   

1018-5593,   

http://bookshop.europa.eu/en/proceedings-of-the-fifth-international-conference-on-nde-in-relation-to-structural-integrity-for-nuclear-and-pressurised-components-pbLDNA22777/,    https://publications.jrc.ec.europa.eu/repository/handle/JRC33233,