Explanation

high temperature alloy based on nickel that can be deformed into profiles or parts blanks by hot working or (and) cold working. Generally, 10% -25% chromium is added to the nickel matrix to ensure that the alloy has good high-temperature oxidation resistance and corrosion resistance; Many refractory metal elements such as Co, W, Mo, Ta, Nb, Hf and ReV are added for solution strengthening: more Al, Ti and Nb are added to form phase or/and phase for precipitation strengthening; In addition, C, B, Zr and a variety of microalloying elements are added to strengthen and toughen the grain boundary. solid solution reinforced nickel based deformation high temperature alloy, due to its good thermoplastic properties, can be used to produce sheet metal for components such as flame tubes and afterburners in aircraft engines or gas turbines, with temperatures up to 900-1000 * C. precipitation strengthened nickel-base wrought superalloy can be made into wheel blade, guide blade, turbine disk and other parts, and the service temperature is generally below 950 ° C. nickel-base wrought superalloy generally adopts electric arc furnace. The atmospheric induction furnace or vacuum induction furnace is used for primary melting, which is produced by vacuum consumable furnace or electroslag furnace remelting process. Apply after proper hot working and heat treatment.

Classification