Phase field simulation method based on nickel-based superalloy phase field simulation database

Abstract

The invention relates to a phase field simulation method based on a nickel-based superalloy phase field simulation database. According to the method, the phase field model corresponding to the actual nickel-based superalloy related physical process is established, the nickel-based superalloy phase field simulation database capable of being coupled with the phase field model is established, and thermodynamic and dynamic simulation parameters required by the phase field model at different temperatures are acquired and classified and stored in the database; and calculation parameters at different temperatures are provided for phase field simulation calculation. By storing a phase field simulation result under a specific process, accurate and rapid data support is provided for simulation research and actual production process optimization of the nickel-based superalloy. According to the scheme, targeted data service is provided for nickel-based high-temperature alloy phase field simulation, the repeated phase field simulation process is avoided, and rich phase field calculation cases under different technologies are provided.

Description

technical field [0001] The present disclosure relates to the field of numerical simulation of nickel-based superalloy for turbine blade manufacturing, and in particular to a phase field simulation method based on a nickel-based superalloy phase field simulation database. Background technique [0002] Nickel-based superalloys are a class of important high-temperature structural materials, which are mainly used in hot-end components of aviation and rocket engines, ships and ground gas turbines. As domestically developed directional solidification superalloys, nickel-based single crystal superalloys such as DD5, DD6, DD10, and directional solidification columnar crystals such as DZ411, DZ444, and DZ466 have relatively excellent anti-oxidation and hot corrosion resistance, and are mainly used in key applications in my country. Preparation of model aviation single crystal superalloy blades and heavy-duty gas turbine single crystal blades. However, in the phase field simulation of...

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Problems solved by technology

[0005] 1. Difficulty in collecting simulation parameters: due to the strong pertinence of the research on the phase field method, the model is often built independently, and the input parameters required for different research objectives are not the same, and a large amount of literature collection and research are required to obtain some of the required data;

[0006] 2. Insufficient collection of simulation parameters: some data required for phase field simulation cannot be directly obtained through literature search, and need to be obtained through special thermodynamic phase diagram calculation software;

[0007] 3. Repeated work: It is difficult to obtain the data required for simulation and the phase field simulation results under specific components and processes that have been collected by previous people. In further research, data collection and phase field simulation work need to be repeated

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