Rod nickel alloy VDM® 80 A

wirefor the aerospace industry

VDM® Alloy 80 A is a nickel-chromium alloy that can be age-hardened. The ability to be hardened is achieved by means of admixtures of titanium and aluminum. It can be delivered in a solution-annealed or age-hardened condition. The alloy is generally used in an age-hardened state. VDM® Alloy 80 A is characterized by: • Very good corrosion resistance in oxidizing media and good scaling resistance at high temperatures • High stability and excellent creep resistance at operating temperatures up to 815 °C (1,500 °F) • High fatigue strength, even under extreme conditions Microstructural properties VDM® Alloy 80 A is an age-hardenable, austenitic nickel-chromium alloy with admixtures of titanium and aluminum, which retains its strength through the γ'-precipitations (Ni3(Al,Ti)). Mechanical properties The following mechanical properties of VDM® Alloy 80 A apply to the described conditions and specifications in the specified semi-finished forms and dimensions (cf. Availability). The properties for larger dimensions must be agreed separately. Corrosion resistance VDM® Alloy 80 A has a high resistance to oxidation under cyclic temperature changes. The alloy forms a firmly adhering oxide layer (Cr2O3), which protects against progressive corrosion and oxidation attacks. The alloy is resistant to scaling up to 1,000 °C (1,832 °F). The material has proven its resistance to vanadium pentoxide, sodium and sulphur compounds for exhaust valves in engines operated with heavy oil.