Research on New High Temperature Alloys

Market analysis of new high-temperature alloys mainly includes four types: powder high-temperature alloys, intermetallic compounds, ODS alloys, and high-temperature metal self lubricating materials:
Powder high-temperature alloy technology: FGH51 powder high-temperature alloy is a phase precipitation strengthened nickel based high-temperature alloy prepared by powder metallurgy process. This alloy γ The volume fraction of the phase is about $, -, and the atomic fraction of the forming element is about 50%. The manufacturing process route of alloy discs is to use vacuum induction melting to produce the parent alloy, then atomize to produce pre alloy powder, and then make the parts into blanks. Compared with similar cast and forged high-temperature alloys, it has advantages such as uniform structure, small grain size, high yield strength, and good fatigue performance. It is currently the highest strength level high-temperature alloy under working conditions of 650 degrees Celsius. This type of high-temperature gold is mainly used for rotating components of high-performance engines, such as turbine discs and load-bearing rings [7].
Intermetallic compounds are used to make components of various advanced carrier power propulsion systems, reducing self weight and improving efficiency;
ODS alloy has excellent high-temperature creep performance, high-temperature oxidation resistance, carbon and sulfur corrosion resistance, which can be used to manufacture key parts of engines, as well as thermal power generation systems, Coal gasification furnaces, industrial gas turbines and industrial boilers, glass manufacturing, automotive diesel engines, nuclear reactors, etc;
High temperature metal based self-lubricating materials are mainly used in the production of high-temperature self-lubricating bearings. They are mainly used to replace oil-bearing, embedded solid self-lubricating bearings, bimetallic bearing shells, and cast sulfur steel solid lubricating bearings (including cast steel surface vulcanization treated bearings) in metallurgical equipment. This high-temperature self-lubricating bearing has advantages such as high strength, large bearing capacity, good lubrication effect, reasonable structural design, low noise, and long service life