GH2135 (GH135) age-hardening iron-based superalloys 1. Grade explain: (GB / T14992-1994) new grades: GH2135 old number: GH135 2.GH2135 (GH135) Chemical composition: Chemical composition (mass fraction) (%) new grade C Cr Ni W M0 A1 Ti Fe Nb VB Ce Mn Si PS other GH2135 ≤O.08 14.O ~ 16.O 33.0 ~ 36.0 1.70 ~ 2.20 1.70 ~ 2.20 2.00 ~ 2.80 2.10 ~ 2.50 margin ≤O.015 ≤0.03 ≤0.4 ≤0.5 ≤0.020 ≤O.020 Note: The table B, Zr, Ce content is added in an amount calculated, may Determination (unless the product standard or protocol, contract otherwise specified) 3. GH2135 (GH135) mechanical test temperature: room temperature tensile strength σb (MPa): ≥900 Conditions yield strength σ0.2 (MPa): 600 Elongation δ5 (%): ≥10 section shrinkage ψ (%): ≥16 Hardness ( hb) / mm (pressure d) 3.25-3.65 microstructure: iron-based alloys age-hardening heat treatment system 1080 ± 10 ℃, air-cooled 830 ± 10 ℃ 8h, air-cooled 700 ± 10 ℃ 16h hours, air-cooled 4. GH2135 (GH135) Key Features: GH2135 (GH135) is our self-developed iron-nickel-base superalloys, except slightly lower fatigue properties of the remaining performance has reached or exceeded the level of nickel-based alloy GH33. GH2135 (GH135) alloys have good thermal processing of plastic, but poor machinability; after surface aluminized better anti-itch properties. Practice has proved that GH2135 (GH135) alloy is relatively mature, reliable. GH2135 (GH135) alloy of chromium and nickel content is relatively low, so the anti-oxidation temperature is only about 800%, but with dispersion strengthening phase forming elements (v, A1, Ti) is relatively high, the solid solution strengthening the matrix may be formed compound phase, so commonly used in the form of a solid solution heat treatment and aging treatment. By solution treatment, the GH2135 (GH135) solid solution strengthening alloy; aging treatment, can strengthen the alloy phase precipitation of fine [VC, Ni3A1, Ni3Ti, Ni3 (A1 Ti?)], Thereby increasing temperature and high temperature strength. Organization after solution and aging treatment of austenite + diffusion compound. 5.GH2135 (GH135) Application examples: GH2135 (GH135) used to make 700 ~ 750 ℃ ??in aviation, aerospace, gas turbine disc, Blades and other high-temperature components, and general bearing parts other industrial use.