GH605?is a cobalt-based high-temperature alloy strengthened with 20Cr and 15W solid solution, with medium endurance and creep strength below 815℃, excellent oxidation resistance below 1090℃, and satisfactory process performance of molding and welding.
Suitable for the manufacture of aero-engine combustion chambers and guide vanes and other hot-end high-temperature parts requiring medium strength and excellent high-temperature oxidation resistance. Can also be used in the space engine and space shuttle. Shanghai Bingqian Industry can produce and supply all kinds of deformed products, such as thin plates, medium plates, strips, bars, forgings, wires and precision castings.
GH605 heat treatment system
Plate, strip: 1175 ~ 1230 ℃, rapid cooling;
Ring: 1175 ~ 1230 ℃, insulation of not less than 15min, water-cooled or rapid air-cooled;
Bar (machining): 1175 ~ 1230 ℃, rapid cooling.
GH605 melting and casting process
The alloy is melted in electric arc furnace or non-vacuum induction furnace and then remelted by electroslag, or vacuum induction melting and electroslag remelting.
GH605 Application Overview and Special Requirements
It is mainly used in the introduction of machine types for the manufacture of high-temperature parts such as guide vanes, turbine outer rings, outer walls, turbine turbines, and sealing sheets. The alloy is sensitive to silicon content, silicon can prompt the alloy to form Co2W-type L phase when exposed between 760～925℃, which will make the alloy's room-temperature plasticity decrease, so the silicon content in the alloy should be controlled less than 0.4%
Chemical composition
Process performance and requirements
1, the alloy has satisfactory hot and cold forming performance, hot working temperature range of The alloy has satisfactory hot and cold forming properties, the hot working temperature ranges from 1200～980℃, the forging temperature should be high enough to reduce the grain boundary carbonization material, should also be low enough to control the grain size, the suitable forging temperature is about 1170℃.
2, the average size of the alloy's grain size and the degree of deformation of the forgings, the final forging temperature is closely related.
3, the alloy can be dissolution welding, resistance welding and fiber welding and other methods of connection.
4, alloy solution treatment: forgings and forging bar 1230 ℃, water cooling.