SURFACE TECHNOLOGIES
PROBLEMS WE SOLVE
Component failure is usually due to a sequence or combination of events which can initiate from the design and choice of materials through to manufacturing processing and assembly including the application of heat, welding and grinding, as well as machining and distortion of the part due to bending, rolling or forging. In services conditions can also contribute to the failure of a part such as variation in temperature and environmental conditions, uneven, high or low cyclic loads or stress profile, compression, torsion and bending as well as foreign object damage. Matching the maintenance needs of the component to its operating conditions and environment is also important to reduce the effects of aging and wear.
Curtiss-Wright Surface Technologies supports every stage of the manufacturing process from design and new manufacturing, to material testing and analysis through to in service maintenance, metal repair and overhaul of components – our metal repair and component protection services increase the strength and performance of parts and reducing costs and downtime.
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The table below gives a brief overview of typical components that we process, what failures they are susceptible to and the component protection available to prevent failure. Note: Failure Modes and Solutions may be relevant for some or all of the components.
For materials characterization or failure analysis, contact IMR Test Labs
Aerospace-Engines
| Blade Roots |
| Blade Roots |
| Air Foils/Blisks/IBR’s |
| Air Foils/Blisks/IBR’s |
| Compressor Airfoils |
| Blisks/IBR’s |
| Air Foils/Blisks/IBR’s |
| Labyrinth Seals |
| Air Foils/Stators |
| Turbine Discs |
| Fuel Nozzles |
| Combustion Liners |
| Turbine Blades |
| Turbine Blades |
| Turbine Shrouds |
| Bearing Seals |
| Carbon Seals |
| Compressor Cases |
| Tie Wire Holes |
| Propeller blades |
| Transmissions, Gearing |
| Transmissions, Gearing |
| Hydraulic Systems |
| High Temperature Fasteners |
| Engine Fuel Pump Bearings |
| Inconel/Stainless Steel / Aluminum Base Materials |
| Airfoils / Stators |
| Airfoils / Stators |
| Filters / Oil Separators |
Failure modes
| Fretting/Galling |
| Fretting Fatigue |
| Fatigue |
| Contact Fatigue |
| Corrosion Protection |
| Clearance Control |
| Foreign Object Damage |
| Clearance Control |
| Erosion/heat protection |
| Fretting Fatigue |
| Wear |
| Thermal Fatigue |
| Thermal Fatigue |
| Clearance Control |
| Clearance Control |
| Wear |
| Wear |
| Clearance Control |
| Fatigue |
| Fatigue |
| Fatigue/Pitting |
| Bending Fatigue/Pitting |
| Corrosion |
| Torque/Tension, Galling |
| Friction / Wear |
| Stress Cracks / Durability |
| Gap Control / Joining / Assembly |
| Gap Control / Joining / Assembly |
| Gap Control / Joining / Assembly |
solutions
| Cu/Ni Thermal Spray,Dry Film Lubricants |
| Shot Peening/Laser peening |
| Shot Peening/Laser peening |
| Shot Peening/Laser peening |
| Aluminum Slurry Coatings |
| Thermal Spray Abradable |
| Laser peening |
| Thermal Spray Coatings |
| Thermal Spray Coatings |
| Shot Peening/Laser peening |
| Thermal Spray Coatings |
| Thermal Barrier Coatings |
| Thermal Barrier Coatings |
| Blade Tip Coatings |
| High Temperature Abradable Coatings |
| HVOF WC Coatings |
| Thermal Spray Coatings |
| Abradable Coatings |
| Shot Peening/Laser peening |
| Shot Peening/Laser peening |
| Isotropic superfinishing |
| Shot Peening/Laser peening |
| Parylene |
| Dry Film Lubricants |
| Dry Film Lubricants |
| Heat Treat / Stress Relieve |
| Brazing |
| Welding |
| Brazing / Welding |
Aircraft Structure
| Wingskin Forming |
| Wingskin |
| Wingskin |
| Stingers, Spars,Bulkheads,etc. |
| Stringers,Spars,Bulkheads,Skins |
| Fasteners |
| Fasteners |
| Landing Gear |
| Landing Gear |
| Landing gear |
| Landing Gear |
| Composite Components |
| Printed Circuit Boards |
| Mechanical Components (splines, actuator shafts, hydraulic fittings) |
| Ballscrew Gimbals |
| Slat Tracks |
| Flap Tracks |
| Helicopter Rotors |
| Brackets |
| Helicopter Rotating Parts |
| Helicopter Rotating Parts |
Failure modes
| Shape correction |
| Fatigue |
| Stress corrosion/exfoliation |
| Fatigue/Stress Corrosion |
| Fatigue debit from coatings |
| Torque/tension |
| Lightning Strike |
| Foreign Object damage |
| Stress Corrosion cracking |
| Fatigue debit from hard chrome |
| Replace Hard Chrome |
| EMI / RFI Shielding |
| Conformal Barrier |
Friction, Wear, Galling |
| Wear |
| Wear |
| Wear |
| Friction / Tension |
| Wear |
| Metal Fatigue |
| Foreign Object Damage (FOD) |
solutions
Automotive
| Connecting rods |
| Crankshafts, fatigue |
| Crankshafts, fatigue |
| Valve Springs, fatigue |
| Rocker Arm, fatigue, wear |
| Gears |
| Shafts |
| Suspension components |
| Various components |
| Frames/Weldments |
| Springs |
| Fasteners |
| Fuel Injection System |
| Turbocharger |
| Turbocharger |
Failure modes
| Fatigue cracking |
| Fatigue cracking |
| Fatigue cracking |
| Fatigue cracking |
| Fatigue cracking |
| Bending/contact fatigue |
| Torsion fatigue splines |
| Fatigue cracking |
| Galling |
| Stress Corrosion Cracking |
| Lubricity/BSR |
| Torque/Tension/Corrosion |
| Fatigue/Stress Corrosion Cracking |
| Fatigue |
| Clearance Control |
solutions
Gas and Steam Turbines/Power G.
| Blade Roots |
| Blade Roots |
| Air Foils |
| Air Foils |
| Compressor Airfoils |
| Compressor Diaphragms |
| Compressor Diaphragms |
| Combustion Liners, Tranitions |
| Turbine Airfoils |
| Turbine Shrouds |
| Air Foils |
| Air Foils |
| Air Foils |
| Rotors/fir trees |
| Rotors/fir trees |
| Rotors/fir trees |
| Rotors/fir trees |
| Steam Turbine Blades |
| Steam Turbine Diaphragms |
| Rotors |
| Rotors |
| All Components |
| Blade Seals and Guides |
| Fasteners |
| Pelton-/Francis Turbine |
| Gears |
| Turbine Vanes / Blades |
| Turbin Vanes / Blades |
Failure modes
| Fretting/Galling |
| Fretting fatigue |
| Fatigue |
| Cavitation erosion |
| Corrosion Protection |
| Corrosion Protection |
| Clearance Control |
| Thermal Fatigue |
| Thermal Fatigue |
| Clearance Control |
| Cavitation erosion |
| Water droplet erosion |
| Water droplet erosion |
| Fretting |
| Fretting/Galling |
| Dimensional Restoration |
| Fretting fatigue |
| Solid Particle Erosion |
| Solid Particle Erosion |
| Stress Corrosion |
| Fatigue |
| Stress Corrosion Cracking |
| Friction/Wear |
| Torque/Tension/Galling/Corrosion |
| Fatigue/Water Droplet Erosion |
| Bending/contact fatigue |
| Fatigue |
| Compression / Strength Improvement |
solutions
| Dry Film Lubricants |
| Shot Peening/Laser peening |
| Shot Peening/Laser peening |
| Thermal Spray |
| Aluminum Slurry Coatings |
| Aluminum Slurry Coatings |
| Abradable Coatings |
| Thermal Barrier Coatings |
| Thermal Barrier Coatings |
| High Temperature Abradable Coatings |
| Shot Peening/Laser peening |
| Thermal Spray |
| Shot Peening/Laser peening |
| Dry Film Lubricants |
| Cu/Ni Thermal Spray |
| Thermal Spray |
| Shot Peening/Laser peening |
| Thermal Spray Coatings |
| Thermal Spray Coatings |
| Shot Peening/Laser peening |
| Shot Peening/Laser peening |
| Shot Peening/Laser peening |
| Dry Film Lubricants |
| Dry Film Lubricants |
| Shot Peening/Laser peening |
| Shot Peening/Laser peening |
| Stress Relieve / Age Heat Treat |
| Honeycomb Brazing |
Industrial: Oil/Gas/Chemical/Mining
| Weldments/Structures |
| Weldments/Structures |
| Valves/Connectors |
Metal seated ball valves |
| Gate valves |
| Catalyst valves |
| Compressor cylinders |
| Valve stems |
| Extrusion screws/barrrels |
| Rotors |
| Autoclave mixers |
| Earthmoving eq |
| Rotors/drums/rolls |
| Natural gas compressor liners, con rods, stems, |
| Shafts/Gears |
| O Rings |
| Flapper Valves/Seals |
Failure modes
| Fatigue/Stress Corrosion |
| Environmental Corrosion |
| Erosion/Cavitation |
Corrosion/Erosion |
| Corrosion/Erosion |
| Corrosion/Erosion/Oxidation |
| Friction/wear |
| Friction/wear |
| Erosion/abrasion/corrosion |
| Erosion/abrasion/corrosion |
| corrosion/erosion |
| wear |
| wear |
|
Friction/wear |
| Fatigue/Stress Corrosion |
| Conformal barrier |
| Fatigue |
solutions
| Shot Peening/Laser peening |
| Coatings |
| Thermal Spray |
| Thermal Spray/Spray & fuse/heat treat |
| Thermal Spray |
| Thermal Spray/Spray & fuse |
| Thermal Spray |
| Thermal Spray/Spray & fuse |
| Thermal Spray |
| Thermal Spray |
| Thermal Spray |
| Thermal Spray/laser clad |
| Thermal Spray/laser clad |
Thermal Spray/laser clad |
| Shot Peening/Laser peening |
| Parylene |
| Superfinishing |
Medical
| Hip/Knee implants |
| Screws/Brackets |
| Stents/Catheters |
Failure modes
| Fatigue/Fretting |
| Fatigue/Stress Corrosion |
| Conformal barrier/Friction |
Electronics
| Printed Circuit Boards |
| Wearables |
| Fixtures |
Failure modes
| Wear |
| Wear |
| Wear |
solutions
| Parylene Coating |
| Parylene Coating |
| Aluminum Wire Spray |
Additive Manufacturing
Failure modes
| Metal Fatigue |
| Rough Surface Finish |
| Surface Densification |
solutions
| Shot Peening / Laser Peening |
| Shot Peening / Dual Peening |
| Shot Peening / Dual Peening |