Abstract:
A method for forming a part having a dual property microstructure includes the steps of: forming a blank having a narrow top portion and a wide base portion; heating the blank to an elevated temperature; and forming a dual property microstructure in the blank by cooling different portions of the blank at different cooling rates.
Abstract:
A turbine engine exhaust structure includes a first annular case and a second annular case arranged radially outwards of the first annular case such that there is an annular space there between. A plurality of struts extend radially in the annular space. The first annular case, the second annular case and the struts include a base material of titanium aluminide.
Abstract:
The present disclosure provides a method of preparing superalloy metals having a crystallographic texture controlled micro structure by electron beam melting.
Abstract:
A process for manufacturing a turbine engine component includes the steps of: providing a powder containing gamma titanium aluminide; and forming a turbine engine component from said powder using a direct metal laser sintering technique.
Abstract:
The present disclosure provides a method of preparing superalloy metals having a crystallographic texture controlled micro structure by electron beam melting.
Abstract:
A process for manufacturing a turbine engine component includes the steps of: providing a powder containing gamma titanium aluminide; and forming a turbine engine component from said powder using a direct metal laser sintering technique.
Abstract:
An alloy composition including a γ-TiAl alloy with a sustained temperature capability of about 1500F. An alloy composition including a γ-TiAl alloy with an oxygen level of about 100 wppm and between about 1500-3000 appm carbon. An alloy composition including a γ-TiAl alloy with an alpha stabilizer.
Abstract:
Components include a low pressure turbine (20) having a plurality of rotor assemblies (100A, 100B) including a first gamma TiAl intermetallic blade (54A) having a maximum operating temperature over 1180°F (638°C). At least two of the rotor assemblies include gamma TiAl intermetallic alloy blades. In an embodiment, a method of making a turbine (20) having a plurality of rotor assemblies (100A, 100B) includes attaching a first gamma TiAl intermetallic alloy blade (54A) to an upstream stage of the plurality of rotor assemblies.
Abstract:
A method for forming a part having a dual property microstructure includes the steps of: forming a blank having a narrow top portion and a wide base portion; heating the blank to an elevated temperature; and forming a dual property microstructure in the blank by cooling different portions of the blank at different cooling rates.