Advertorial feature | Liburdi Turbine Services Liburdi Power Metallurgy LPM® The patented LPM® repair process, first


introduced to the industry in 1990, continues to gain new applications and enable parts previously deemed not repairable to be successfully repaired, and returned for additional service. Over 300 sets of turbine components have been successfully repaired to date using this unique process. The Liburdi LPM®


superalloy process produces


high strength, and distortion free repairs (compared to conventional weld repairs) and has been used extensively for Heavy Duty Industrial and Aeroderivative components for some 20+ years. It is now approved and being applied to Commercial Aircraft components.


Aircraft Engines: The PW2000 flight engine Stage 3 Vanes experience shroud abutment and seal slot oxidation metal loss in service which could not be repaired with conventional processes. These parts are now being retrieved from storage and successfully repaired with the LPM®


process –


providing significant costs savings for the airline industry. With proven performance in Industrial turbine service for some 20 years, LPM®


gained approvals to fly under FAA certification for the PW2000 engine with other applications underway for GE and RR flight engines.


has now repair process – now approved for Industrial and Aircraft engines


Oxidized vane abutments


After LPM repair material added


Final machining to restore abutments


Aeroderivative: OEM authorisations for LPM® for Industrial RB211 and Industrial Avon engine repairs began in 2002. To date, more than 100 sets of these Aeroderivative vanes have been repaired with the LPM®


achieving extended service lives to 150,000 hours.


Heavy Duty Industrial: Following introduction in 1990 for Heavy Duty Industrial components and early approvals by Westinghouse, the LPM® has been used to repair more than 175 sets of GE, Westinghouse, Siemens and Alstom and IGT Nozzles and Vanes including some 50 sets of “F” Class Nozzles. The MarM247 Nickel LPM®


alloy


for repair of nozzle and vanes produces a repair which is stronger that the original Cobalt new-


part casting. LPM®


is applied in Liburdi Repair


Centers in Dundas, Canada and Mooresville, North Carolina – as well as Liburdi licensed Joint Ventures in Russia, the UAE, and China.


process – and are reliably Other unique technologies from Liburdi


include: ● FSR®


Full Solution Rejuvenation® heat


treatment cycles to restore blade/bucket alloy microstructure to original as-new properties.


● The LSP™ Chemical Stripping process to remove internal coating so they can be replaced with new coatings.


● Alloy L3000™ Oxidation Resistant Weld Alloys restore and maintain tip heights, for full engine power and efficiency throughout the service interval.


www.modernpowersystems.com | July 2019 | 29


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