GH1015 superalloy is a solid solution strengthened iron-based superalloy composed of nickel, molybdenum, niobium and other elements, and the nickel content is about 38%. GH1015 superalloy alloy has good hot and cold working properties, good strength and plasticity combination at various temperatures, and high thermal strength, good thermal fatigue and oxidation resistance; its stamping, welding and other process properties are good . There is an aging phenomenon in long-term use.
Chemical composition of GH1015:
Carbon C: ≤0.08
Silicon Si: ≤0.60
Manganese Mn: ≤1.50
Phosphorus P: ≤0.020
Sulfur S: ≤0.015
Chromium Cr: 19-22
Nickel Ni: 34-39
Molybdenum Mo: 2.5-3.2
Nitrogen N: ~
Copper Cu: ≤0.25
Iron Fe: balance
Niobium Nb: 1.1-1.6
Boron B: ≤0.010
Titanium Ti: ~
Aluminum Al: ~
Vanadium V: ~
Tungsten W: 4.8-5.8
Cerium Ce: ≤0.050
Mechanical properties of GH1015 superalloy:
1. Heat treatment system: 1140-1170ºC air cooling
2. Tensile strength σb (MPa): ≥680
3. Conditional yield strength σ0.2 (MPa): ≥630
4. Elongation δ5 (%): ≥35
5. Section shrinkage rate ψ (%): ≥40
GH1015 superalloy application:
It is suitable for general load-bearing components (except turbine blades) for aerospace, aviation, gas turbines and other industries with a combined temperature of 550-1000 °C, and is used for turbine engine combustion chambers and afterburners that work below 950 °C, etc. part.
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