Effect of Microstructure on Creep Properties of Alloy Haynes H-282

Superalloy Haynes H-282 is proposed as an alternative material for application on high temperature environments as those present in aeronautical engines and power generation turbines. In this contribution, seamless rings were produced considering industrial conditions. Representative segments were extracted from produced seamless rings and these segments were exposed to selected Solution and Precipitation heat-treating parameters in order to promote alloy mechanical properties. Such properties are evaluated by creep testing and reported results are correlated to microstructural properties evaluated by Optical Microscopy and Electronic Microscopy.