According to the existing theory, 760℃ high temperature materials can be mainly divided into iron base superalloy, nickel base superalloy and cobalt base superalloy according to the matrix elements. According to the preparation process, it can be divided into deformation high temperature alloy, casting high temperature alloy and powder metallurgy high temperature alloy. According to the strengthening methods, there are solid solution strengthening type, precipitation strengthening type, oxide dispersion strengthening type and fiber strengthening type.
Application:
Superalloy is mainly used in the manufacture of aviation, naval and industrial gas turbine turbine blades, guide blades, turbine disc, high pressure compressor disc and combustion chamber and other high temperature components, but also used in the manufacture of aerospace vehicles, rocket engines, nuclear reactors, petrochemical equipment and coal conversion and other energy conversion devices.
Solution-reinforced iron-based alloys:
GH1015、GH1035、GH1040、GH1131、GH1140
Age-hardening iron based alloys:
GH2018、GH2036、GH2038、GH2130、GH2132、GH2135、GH2136、GH2302、GH2696
Solid solution reinforced nickel-based alloy:
GH3030、GH3039、GH3044、GH3028、GH3128、GH3536、GH605，GH600
Age-hardening nickel-based alloys:
GH4033、GH4037、GH4043、GH4049、GH4133、GH4133B、GH4169、GH4145、GH4090
GH1015 is a Fe-Ni-Cr based solid solution strengthened deformed superalloy, the service temperature is below 950℃. The alloy was strengthened by adding chromium, tungsten and molybdenum in solution. The alloy has high plasticity, medium endurance and creep strength, good thermal and cold fatigue resistance, good machining and welding properties, and structural stability.
