Yes. Not steel. The unsuitability of steel was quickly discovered in the development of turbojets at the end of World War II. Turbine blades are also cooled from compressed air drawn through internal passages. After the first two or so stages of the turbine, the driving air has cooled from the turbine inlet temperature.
Yes. Not steel. The unsuitability of steel was quickly discovered in the development of turbojets at the end of World War II. Turbine blades are also cooled from compressed air drawn through internal passages. After the first two or so stages of the turbine, the driving air has cooled from the turbine inlet temperature.