Characterization of H-282 Forged Seamless Rings

Haynes H-282 alloy is a new gamma-prime strengthened superalloy developed for high temperature structural applications. This superalloy can develop an interesting combination of creep strength, thermal stability, weldability and fabricability. Such properties and expected operational temperature range of 649 to 927C, make this material suitable for the fabrication of seamless rings with application in aircraft engines.

In this paper, microstructural and mechanical characteristics of H-282 superalloy are evaluated when seamless rings are produced considering industrial conditions. Effect of variables as hot-working temperature, deformation ratio and heat-treating are evaluated in characteristics as microstructure, tensile and stress-rupture testing. Scanning electron microscopy complements microstructural evaluation.