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基于响应面法的FGH4113A高温合金涡轮盘锻造工艺参数优化
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1.华中科技大学材料科学与工程学院;2.深圳市万泽中南研究院有限公司

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国家自然科学基金(52175319);中央高校基本科研业务费专项资金(YCJJ202202003)


Optimization of the Forging Process Parameters of the FGH4113A P/M superalloy turbine disk based on response surface method
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School of Materials Science and Engineering,State Key Laboratory of Materials Processing and Die Mould Technology,Huazhong University of Science and Technology

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    摘要:

    本研究通过对有限元模拟软件进行二次开发并嵌入所建立的微观组织演变模型,实现了FGH4113A镍基粉末高温合金涡轮盘锻造过程的宏微观耦合数值模拟。通过单因素实验方法,分析了坯料温度、模具温度、坯料高径比和应变速率对涡轮盘锻后平均晶粒尺寸及其分布的影响。基于响应面法,建立了工艺参数与微观组织之间的映射关系模型。以盘件锻后平均晶粒尺寸和标准偏差为微观组织优化目标,进行涡轮盘工艺参数的多目标优化,得到最优工艺参数为:坯料温度为1097℃左右、模具温度为976℃左右、坯料高径比为2.4、应变速率为0.021s-1在优化后的参数条件下进行数值模拟和工艺实验以验证优化结果的可靠性,结果表明所优化的工艺参数可以同时细化涡轮盘的平均晶粒尺寸并提高其组织均匀性。本研究可以为高性能航空发动机涡轮盘生产过程中的工艺制定提供借鉴和参考。

    Abstract:

    In this work, the macro-micro coupled finite element simulation of the FGH4113A P/M superalloy during the forging process was carried out and systematically studied. The effects of workpiece temperature, die temperature, height-diameter-ratio of the workpiece, and strain rate on the microscopic average grain size (dave) and its distribution uniformity of the forged turbine disks were analyzed by single factor simulation. Based on the orthogonal experimental design and response surface method, the mapping relationship between processing parameters and microstructure state variables was established. The dave and the standard deviation of grain size distribution were taken as the optimization targets of processing parameters to achieve microstructural control. Then the optimal processing parameters can be obtained by multi-objective optimization of the established response surface model, listed as: the workpiece temperature of 1097℃, the die temperature of 976℃, height-diameter-ratio of 2.4, and strain rate of 0.021s-1. The validated finite simulation under this deformation condition was carried out to verify the reliability of the optimization results. The results show that the forged turbine disk depicts the characteristics of the finer dave and uniform grain size distribution. This study can provide the guidelines and reference for process formulation in the production process of high-performance superalloy turbine disks.

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温红宁,金俊松,章一丁,龚攀,王新云,陈俊志,马向东,郭建政.基于响应面法的FGH4113A高温合金涡轮盘锻造工艺参数优化[J].稀有金属材料与工程,2024,53(9):2633~2641.[Wen Hongning, Jin Junsong, Zhang Yiding, Gong Pan, Wang Xinyun, Chen Junzhi, Ma Xiangdong, Guo Jianzheng. Optimization of the Forging Process Parameters of the FGH4113A P/M superalloy turbine disk based on response surface method[J]. Rare Metal Materials and Engineering,2024,53(9):2633~2641.]
DOI:10.12442/j. issn.1002-185X.20230479

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历史
  • 收稿日期:2023-08-02
  • 最后修改日期:2023-08-31
  • 录用日期:2023-09-14
  • 在线发布日期: 2024-09-13
  • 出版日期: 2024-09-04