TURBINE ROTOR AND TURBINE ENGINE

摘要

A turbine rotor (103) comprises a hot shaft part (203) being operable at a high temperature and a cool shaft part (201) being operable at a lower temperature than the high temperature, the cool shaft part (201) adjoining said hot shaft part (203) . The cool shaft part (201) and the hot shaft part (203) are composed from the same nickel based superalloy with a nickel content in the range of 30 - 65 wt%.