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Nimonic80A

Nimonic80A age-hardening nickel-based superalloy

Nimonic80A Features and Applications Overview:

GH80A is a high-temperature alloy based on nickel-chromium with addition of aluminum and titanium as phase-dispersed dispersion. Similar to GH4033 except that the content of aluminum is slightly higher, GH80A has a good working temperature of 700-800 ℃ and 650-850 ℃ Creep and oxidation performance. The alloy has good hot workability. The alloy used in the manufacture of engine rotor blades, guide vane bearings, bolts, blade lock plate and other parts.

Nimonic80A similar brand:

hinese brand GH80A Nimonic80A (UK)

Nimonic80A & nbsp; Chemical composition: (GB / T14992-2005)
Alloy grade
%
Ni
Cr
Fe
Fe
Mo
Zr
W
B
Cu
Co
C
C
Mn
Mn
Si
Si
S
S
P
P
Ai
Al
Ti
Ti
Nimonic80A
Min
Margin
18.0
0.04
1.0
1.8
Max
21.0
1.5
0.008
2.0
0.10
0.4
0.8
0.015
0.2
1.8
2.7
Nimonic80A Physical Properties:
Density
Melting point
Thermal conductivity
Specific heat capacity
Elastic Modulus
Shear modulus
Resistivity
Poisson's ratio
Linear expansion coefficient
g/cm3
λ/(W/m•℃)
J/kg•℃
GPa
GPa
μΩ•m
a/10-6℃-1
8.15
1405
27.66(100℃)
225
15.36(20~100℃)
Nimonic80AMechanical properties: (at 20 ℃ to detect the minimum mechanical properties)
Heat treatment methods
Tensile strengthσb/MPa
Yield Strengthσp0.2/MPa
Elongationσ5 /%
Brinell hardness HBS
Solution treatment
1000
620
20
285
Nimonic80A Production standards:
Standard
Bar
Forgings
Plate (with) material
Wire
Pipe
Nimonic80A Metallographic structure:


Nimonic80A Process performance and requirements:

1, the alloy hot deformation heating temperature is 1160 ~ 1180 ℃, the best plastic temperature range is 1160 ~ 1000 ℃, one-time maximum deformation of 50%, large-size die forgings require cladding die forging.
2, the average grain size of the alloy and forging deformation degree, the final forging temperature is closely related.
3, the alloy in solid solution can be inert gas tungsten arc welding and flash butt welding.

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