Gas Turbine Component Repair Services
A damaged turbine part isn’t always a lost cause. In many cases the base material still has plenty of life left, and a proper repair brings the part back to work for a fraction of the cost and lead time of a new one. That is the idea behind our gas turbine component repair service.
Kian Turbo Tec is an independent repair workshop for gas turbines and related power equipment. We refurbish parts from the compressor, combustion and hot sections, supported by the technology and know-how of our parent company, Chromalloy. If you are planning a wider outage, our gas turbine overhaul service covers the whole machine.
Specialized Repairs, Done In-House
Inspection, repair and testing all happen in our regional workshop, so your parts don’t travel between different vendors. Our capabilities include:
- Specialized vacuum furnace for super alloys
- Metallurgical laboratory and component life evaluation
- Full NDT testing with conditional reporting
- Advanced alloy, laser, induction and chamber welding
- Advanced braze repairs
- Hydrogen fluoride ion cleaning
- Hot isostatic pressing (HIP) rejuvenation heat treatment
- Fuel nozzle testing and flow matching
- Flow divider, pump and valve testing
- Bearings and associated deflectors
The laboratory step matters more than it looks. Before any repair starts, we evaluate how much life the component has left, so you know whether repair makes sense before money is spent.
High-Technology Coating Processes
Some repairs need more than welding and machining. For parts that face extreme heat, oxidation or wear, we offer a full range of coating processes, many of them developed and patented by Chromalloy:
- Electron beam physical vapor deposition (EBPVD)
- Platinum aluminide coatings
- Low pressure plasma spray (LPPS)
- High velocity oxy fuel (HVOF)
- Pack cementation coatings
- Plasma spray thermal barrier coating (TBC)
- Protective hard face and anti-fretting coatings
Individual Blade and Nozzle Coating
Blades and nozzles work in the harshest part of the turbine, so their coating needs to fit the part. We apply materials such as Sermetel W, Sermalloy J and aluminide at different thicknesses, depending on the part’s condition and the thermal and corrosion resistance it needs. The result is a longer service life and less damage during operating hours.
Precision Machining and Welding
A repaired part is only useful if it returns to exact dimensions. Our machine shop runs CNC and manual DRO heavy-duty lathes and CNC and manual milling machines for turning, profiling and finishing work.
On the welding side, we offer MIG, TIG, SAW, SMAW, laser, plasma and submerged arc welding, so the method is chosen to suit the alloy and the damage, not the other way around.
Repair, Replace or Reverse Engineer?
If a part is beyond repair, we can supply gas turbine spare parts. For components that are discontinued or hard to source, our reverse engineering service is another route. For rotors, see our rotor overhaul services.
Product Specifications
- Service: Gas turbine component repair
- Scope: Compressor, combustion and hot-section parts
- Repair methods: Advanced welding, brazing, HIP heat treatment, ion cleaning
- Coatings: EBPVD, LPPS, HVOF, TBC, platinum aluminide, pack cementation
- Testing: NDT, metallurgical evaluation, flow and valve testing
- Machining: CNC and manual lathes and milling machines
Repairs You Can Trust With Your Turbine
Every turbine is different, and a good repair starts with an honest assessment of the part in front of us. Send us the details of your components and our engineers will recommend the most practical route.
To request a quote or ask a technical question, contact the Kian Turbo Tec team.