NICKEL-BASED SUPERALLOY, A MECHANICAL COMPONENT FORMED OF THE SUPERALLOY, A TURBO-MACHINERY PART INCLUDING THE MECHANICAL PART, AND A RELATED METHOD TO CORRECT DEFORMATION CAUSED BY HIGH-TEMPERATURE GAS

摘要

PURPOSE: A nickel-based superalloy, a mechanical component formed of the superalloy, a turbo-machinery part including the mechanical part, and a related method are provided to improve the mechanical resistance of nickel-based superalloy under high temperature by accurately arranging nozzles and supporters in a gas passage and adding rhenium.;CONSTITUTION: A nickel-based superalloy comprises chrome 3~7 weight%, tungsten 3~15 weight%, tantalum 4~6 weight%, aluminum 4~8 weight%, carbon less than 0.8 weight%, and nickel and inevitable impurities of the rest amount. The nickel-based superalloy also includes yttrium oxide 0~15 volume% and rhenium 0~10 weight%.;COPYRIGHT KIPO 2011