GH4145 nickel base superalloy GH145

GH4145 nickel base superalloy GH145

 

GH4145 (GH145) nickel-based superalloy overview

The GH145 alloy is mainly a nickel-based superalloy that is age-strengthened with the γ ′ [Ni3 (Al, Ti, Nb)] phase. It has good corrosion resistance and oxidation resistance below 980 ℃ and high strength below 800 ℃. Below 540 ℃ has good relaxation resistance, but also has good formability and welding performance. The alloy is mainly used for the manufacture of aero-engines that work below 800 ° C and require high-strength corrosion-resistant rings, structural parts and bolts, etc., and work under 540 ° C with moderate or low stress and require relaxation resistance Springs and coil springs. It can also be used to manufacture gas turbine turbine blades and other parts. The available varieties are plates, strips, bars, forgings, rings, wires and pipes.

 

GH4145 (GH145) nickel-based superalloy chemical composition

C	Cr	Ni+Coi	Ti	Fe	Al	P
≤ 0.08	14.00 17.00	≥ 70.00	2.25 2.75	5.00 9.00	0.40 1.00	≤  0.015
S	Cu	Co	Mn	Si	Nb+Ta
≤ 0.010	≤ 0.50	≤ 1.00	≤ 1.00	≤ 0.50	0.70 1.20

 

Similar brands of GH4145 (GH145) nickel-based superalloys

GH145 GH4145 (China), Inconel X-750 (United States), NiCr15Fe7TiAl (Germany), NC15FeTNbA (France), NCF750 (Japan)

 

GH4145 (GH145) nickel-based superalloy heat treatment system

The solution heat treatment system in the supply state of plates, belts and pipes is 980 ℃ ± 15 ℃, air-cooled. For the intermediate heat treatment system of materials and parts, the following processes can be selected for heat treatment.

Annealing: 955 ～ 1010 ℃, water cooling.

Annealing of welded parts before welding: 980 ℃, 1h.

Stress relief annealing of welded parts: 900 ℃, moisture retention for 2h.

Stress relief annealing: 885 ℃ ± 15 ℃, 24h, air cooling.

 

GH4145 (GH145) nickel-based superalloy variety specifications and supply status

Can supply various specifications of bars, forgings, rings, hot-rolled plates, cold-rolled plates, strips, pipes and wires.

Sheets and strips are generally supplied after hot rolling or cold rolling, annealing or solution treatment, pickling and polishing. Bars, forgings and rings can be supplied in forged or hot-rolled state; they can also be supplied in solution treatment after forging; bars can be polished or polished after solution treatment The pull state is in place. The pipe is supplied after solution treatment and removal of scale. The wire can be supplied in a solid solution state; for wires with a nominal diameter or thickness below 6.35mm, it can be supplied after solid solution and cold drawn deformation of 50% to 65%; those with a nominal diameter or side length greater than 6.35mm The wire material is supplied by cold drawing deformation of not less than 30% after solution treatment. For wires with a nominal diameter or side length not greater than 0.65mm, they shall be supplied by cold drawing deformation of not less than 15% after solution treatment according to requirements.

 

GH4145 (GH145) nickel-based superalloy applications

Used to manufacture parts such as gas turbine turbine blades. Manufacturing aero-engines that work below 800 ° C and require high-strength, corrosion-resistant rings, structural parts, bolts, and other parts, and those that work below 540 ° C have moderate or low stress and require relaxation-resistant flat springs and coil springs