Ferromanganese Alloy Share Casting Superalloy Method Related Information Do You Know?
It is a superalloy material that is directly fabricated by casting. Casting superalloy is a kind of superalloy that is refined from alloy raw materials and then cast by vacuum remelting. Compared with superalloy, the application temperature and strength are higher, the degree of alloying is higher, the dosage is less and fine, mainly used for the preparation of complex shape products. Casting superalloy can also be divided into equiaxed crystal casting high-temperature gold. The performance and preparation difficulty of directionally solidified cylindrical superalloy and single crystal superalloy are improved successively.
Equiaxed crystal casting superalloy refers to the superalloy which is prepared by traditional investment casting method. The grain structure is equiaxed and the manufacturing cost is low. It has excellent mechanical properties at low and medium temperature and is widely used in aerospace. In aerospace and other fields, it can be used in the manufacture of large complex structural parts such as aeroengine diffuser and chassis at -235~1050℃. Integral casting turbines. Directioners. Guide, turbine blade, space rocket engine turbopump and other related components, complex structure. Dimensional accuracy and thin-wall lightweight are the developing trends.
K418 alloy is a kind of cast superalloy with large dosage. Ferromanganese alloy has been widely used in aviation production. Ground and offshore gas turbine turbine working blades. Guide blades and integral cast turbines, integral cast turbine rotors and guides for aerospace elastic engines, turbocharge turbines for diesel engines and gasoline engines. K deformation superalloy 4169 developed from alloy GH4169, including. The remarkable feature of high iron content is high strength in a wide range of low temperature (-253~650℃). Plasticity. Excellent corrosion resistance. Radiation resistance and good welding performance.
Directionally solidified superalloy is a columnar crystal superalloy that is parallel to the principal stress axis by directional solidification technique to eliminate harmful horizontal grain boundaries (DS or DZ alloys).
After problems were found in the use process, the composition of the alloy developed was adjusted. After the thin-walled blade was exposed to serious hot cracking tendency in the casting process, the ferromanganese alloy manufacturer suggested that the alloy strength should be comprehensively considered according to the alloying principle and solidification theory. Castability. Stability of tissue. The redeveloped alloy has corrosion resistance and other factors.
