Component optimization design method of 617 nickel-based superalloy

The invention discloses a component optimization design method of 617 nickel-based superalloy, comprising the following steps of: calculating the relationship between each precipitation amount in thealloy with a typical chemical composition and the temperature based on the chemical composition defined by the alloy; obtaining main equilibrium phases of the alloy, and simultaneously obtaining the relationship between the precipitation amount of each phase and the temperature; determining main composition phases of the alloy and main alloy elements of each composition phase at the working temperature, and adjusting and optimizing the content of Al, Ti, Cr, Mo and C elements in the alloy to obtain the content of an ideal composition phase; obtaining the value range of the adjusted alloy element components, and finally obtaining the optimized chemical components of the alloy. By the method, a relatively accurate equilibrium phase diagram is obtained, and a theoretical basis is provided forthe design and production