GH1035, this Fe-35Ni-20CR austenitic solution-strengthened iron-based deformed alloy, has become a bright star in the aviation field with its excellent performance. Its performance is comparable to that of GH3039 nickel-based alloy, making it an ideal choice for long-term operation of turbine engine combustion chambers, turbine outer rings, exhaust devices and other parts below 900. Its main product form is plate, which makes it have a wide range of applications in the field of aerospace manufacturing.
In order to meet the strict requirements of the aviation industry for superalloys, China has formulated a series of relevant standards, such as GJB 1952 -1994 "Specification for Cold-rolled Sheet of Superalloy for Aviation", GJB 2612-1996 "Specification for Cold-drawn Wire of Superalloy for Welding" and GJB 3317-1998 "Specification for Hot-rolled Plate of High-temperature Alloy for Aviation". These specifications ensure the consistent quality and reliable performance of GH1035 alloy in the production process.
In the production process, GH1035 alloy can be melted by electric arc furnace, non-vacuum induction furnace or electric arc furnace melting plus electroslag remelting process. Among them, when smelting in a non-vacuum electric furnace, the purity and quality of the alloy are ensured by using argon to protect the ingot and inject the ingot. The taper of the ingot die is typically 5%, and this precise design allows the alloy to dissipate heat better during the solidification process, resulting in a better microstructure and performance.
GH1035 alloy has successfully replaced nickel-based GH3039 alloy plates with excellent properties, which are used to make combustion chamber parts and engine turbine outer rings. This substitution not only reduces costs, but also increases the service life and reliability of the parts. However, in the medium temperature range, its fatigue properties are slightly lower than those of nickel-based alloys for similar purposes, so this needs to be taken into account during application.
Overall, GH1035 alloy has become an indispensable and important material in the aviation field due to its excellent performance and wide application prospects. With the continuous development of aviation technology, it is believed that GH1035 alloy will play a more important role in the future.