Abstract: A system and method of processing an alloy ingot or other alloy workpiece to reduce thermal cracking and reduce friction between the workpiece and the forging die may generally comprise positioning a multi-layer pad between the workpiece and the forging die. An article for processing an alloy ingot or other alloy workpiece to reduce thermal cracking also is disclosed. The present disclosure also is directed to an alloy workpieces processed according to the methods described herein, and to articles of manufacture including or made from alloy workpieces made according to these methods.

Abstract: A system and method of processing an alloy ingot or other alloy workpiece to reduce thermal cracking and reduce friction between the workpiece and the forging die may generally comprise positioning a multi-layer pad between the workpiece and the forging die. An article for processing an alloy ingot or other alloy workpiece to reduce thermal cracking also is disclosed. The present disclosure also is directed to an alloy workpieces processed according to the methods described herein, and to articles of manufacture including or made from alloy workpieces made according to these methods.

Abstract: An atomizing system and method are disclosed. A system can include a tundish configured to hold a molten material and a nozzle in fluid communication with the tundish. The nozzle and/or the tundish can be comprised of a material having a composition that is substantially similar to the composition of the molten material. An internal channel can be defined in at least one of the tundish or the nozzle. Additionally, a pump can be configured to pump a molten heat transfer medium through the internal channel. A method of atomizing the molten material can include affecting heat transfer between the molten material and the tundish and/or the nozzle with a molten heat transfer medium in at least one internal channel in the tundish and/or the nozzle. The tundish and/or the nozzle can comprise a material that is substantially similar to the molten material.

Abstract: A system and method of processing an alloy ingot or other alloy workpiece to reduce thermal cracking and reduce friction between the workpiece and the forging die may generally comprise positioning a multi-layer pad between the workpiece and the forging die. An article for processing an alloy ingot or other alloy workpiece to reduce thermal cracking also is disclosed. The present disclosure also is directed to an alloy workpieces processed according to the methods described herein, and to articles of manufacture including or made from alloy workpieces made according to these methods.

Abstract: A nickel-based superalloy article formed from particles of the superalloy is processed to have a microstructure which is resistant to failure when processed using high strain thermomechanical processes. Articles having the desired microstrucuture are produced by hot isostatically pressing powder of the superalloy in a specified temperature range bounded by the incipient melting temperature as a minimum and the solvus temperature of stable high temperature phases. The compact is held under pressure in the specified temperature range to diffuse deleterious phases which exist as a result of the initial powder atomization operation. The powder compact thus formed can be processed using conventional processes to produce material for subsequent thermomechanical processing using high strain rate forging equipment and retain the benefits of chemical uniformity and cleanliness associated with traditional powder metal processes.

Abstract: A method of heat treating a nickel base superalloy comprising solution treatment at 2050.degree. to 2150.degree. F. (1121.degree. to 1177.degree. C.) for about 2 hours and cooling at a rate at least as rapid as still air; stabilization at 1750.degree. to 1850.degree. F. (954.degree. to 1010.degree. C.) for 1/4 to 4 hours and cooling at a rate at least as rapid as still air; and precipitation hardening at 1350.degree. F. (732.degree. C.) for at least about 8 hours and air cooling. The heat treated product contains a low level of precipitated grain boundary carbides, and exhibits an optimum balance of tensile strength, stress rupture life and creep strength, along with reduced residual stress in the product.