GH4586 Antioxidant
GH4586 (GH586) precipitation hardening deformed superalloy
GH4586 is a Ni-Cr-Co-based precipitation hardening deformed superalloy, the operating temperature range is -196ºC~800ºC, and it can be used for a short time at 850ºC. The alloy is added with aluminum and titanium elements to form a γ' precipitation strengthening phase, and cobalt, chromium, tungsten and molybdenum elements are added for solid solution strengthening. Under suitable hot working and heat treatment process conditions, the alloy precipitates fine granular carbides along the grain boundaries, which play a supplementary strengthening effect. The alloy has high high temperature strength, good anti-yangization, corrosion resistance and ablation resistance, as well as good processing and welding properties. The main products are bars, round cakes and die forgings.
The alloy is a high-performance superalloy turbolun disk material developed by my country with independent intellectual property rights. It has been used to make heat-resistant load-bearing parts for engines in aviation, aerospace and other fields, including turbine rotors for liquid oxygen/kerosene rocket engines and many Various types of aerospace engine turbine rotor die forgings, in good condition.
Excerpted from GH/T C14992, the difference in impurity element analysis is extracted from Q/GYB 05010, Q/GYB 05012 and Q/GYB 05024, see table
Chemical composition:
C:≤0.08
Cr:18~20
Ni:balance 56
Mo:7~9
W:2~4
Al:1.5~1.7
Nb:
Ti:3.2~3.5
Fe:≤5.0
Si:≤0.50
Mn:≤0.10
P:≤0.010
S:≤0.010
Co:10~12
La:≤0.015
B:0.005
Mg:0.015
Q/GYB 05010, Q/GYB 05012 and Q/GYB 05024 specify the impurity elements for inspection.
Heat treatment system
From Q/GYB 05010, Q/GYB 05012 and Q/GYB 05024, the standard heat treatment regime for hot rolled and forged bars, forged round cakes and die forgings is: 1080ºC±20ºC×4h/AC+760ºC± 10ºC×4h/AC.
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