Creep resistant Ni-based superalloy casting and method of manufacture for advanced high-temperature applications

Patent · Tue Sep 27 00:00:00 EDT 2022

OSTI ID:1925136

Jablonski, Paul D.; Hawk, Jeffrey; Detrois, Martin

One or more embodiments relates to a method of casting a creep-resistant Ni-based superalloy and a homogenization heat treatment for the alloy. The method includes forming a feed stock having Nickel (Ni) and at least one of Chromium (Cr), Cobalt (Co), Aluminum (Al), Titanium (Ti), Niobium (Nb), Iron (Fe), Carbon (C), Manganese (Mn), Molybdenum (Mo), Silicon (Si), Copper (Cu), Phosphorus (P), Sulfur (S) and Boron (B). The method further includes fabricating the creep-resistant Ni-based superalloy in a predetermined shape using the feed stock and at least one process such as vacuum induction melting (VIM), electroslag remelting (ESR) and/or vacuum arc remelting (VAR).

• Research Organization: US Dept. of Energy (USDOE), Washington, DC (United States)
• Sponsoring Organization: USDOE
• Assignee: United States Department of Energy (Washington, DC)
• Patent Number(s): 11,453,051
• Application Number: 17/184,542
• OSTI ID: 1925136
• Resource Relation: Patent File Date: 02/24/2021
• Country of Publication: United States
• Language: English