Airbus, in partnership with Messier Bugatti Dowty, Carpenter Technology and the Advanced Manufacturing Research Centre at the University of Sheffield, are developing the maturity of a new corrosion-resistant stainless steel alloy known as “CRES” – for possible use in future landing gear components. As part of the collaborative evaluation, nine A320 main gear components have been forged in the new steel and used for further materials development, including establishing properties of the as-manufactured materials and define the optimum industrialisation route. Furthermore, two components are being manufactured to a 'final finish'. In the future, the team hopes to assemble a fully CRES landing gear for in-service evaluation.
The new CRES steel, which avoids the need to use traditional cadmium and chromate coatings, confers intrinsic corrosion resistance and could become an alternative to both existing low-alloy carbon steels and titanium alloys for future aircraft landing gear. The strength is comparable to current steels and it could be available for less than half the price of titanium alloys. CRES steels also improve the cost of ownership due to the reduction of in-service corrosion. Moreover, thanks to a large improvement in fracture toughness and stress corrosion cracking resistance, they are much more environmentally robust.
Contact details from our directory: | |
Airbus S.A.S. | Airframer |
Carpenter Technology Corporation | Steel, Superalloys, Titanium, Nickel |
Safran Landing Systems | Carbon Brakes, Aircraft Landing Gear, Aircraft Wheels, Oil Pressure Monitoring Equipment, Brake-by-Wire Systems, Electrohydraulic Brakes, Electrical Brakes, Steering Systems, Electronic Control Equipment, Landing Gear Controls, Hydraulic Systems & Equipment, Tyre Pressure Monitors, Hydraulic Filters, Electrohydrostatic Actuators, Hydraulic Brakes, Engine Controls, Anti-Skid Brakes & Systems, Brake System Components, Helicopter Landing Gear |
University of Sheffield AMRC | Research/Consulting Services, Academic Institutions, Technical/Eng/Scientific Studies, Metal & Alloy Castings, Titanium, Composite Manufacturing Services, Sensors/Transducers |
Related aircraft programs: |
Airbus A320 |
Related directory sectors: |
Landing Assemblies |
Weekly news by email:
See the latest Bulletin, and sign up free‑of‑charge for future editions.
Amprius and Stafl team up for battery pack innovation
RISE engine efficiency project gains momentum
Dufour picks Mejzlik propeller blades for the Aero2