Advances in Manufacturing ›› 2019, Vol. 7 ›› Issue (2): 238-247.doi: 10.1007/s40436-019-00259-0

• ARTICLES • 上一篇    下一篇

A strategy to control microstructures of a Ni-based superalloy during hot forging based on particle swarm optimization algorithm

Dong-Dong Chen1,2, Yong-Cheng Lin1,2, Xiao-Min Chen3   

  1. 1 School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, People's Republic of China;
    2 State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, People's Republic of China;
    3 College of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, People's Republic of China
  • 收稿日期:2018-11-15 修回日期:2019-02-21 出版日期:2019-06-25 发布日期:2019-06-19
  • 通讯作者: Yong-Cheng Lin E-mail:yclin@csu.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (Grant No. 51775564), and the Natural Science Foundation for Distinguished Young Scholars of Hunan Province (Grant No. 2016JJ1017).

A strategy to control microstructures of a Ni-based superalloy during hot forging based on particle swarm optimization algorithm

Dong-Dong Chen1,2, Yong-Cheng Lin1,2, Xiao-Min Chen3   

  1. 1 School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, People's Republic of China;
    2 State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, People's Republic of China;
    3 College of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, People's Republic of China
  • Received:2018-11-15 Revised:2019-02-21 Online:2019-06-25 Published:2019-06-19
  • Contact: Yong-Cheng Lin E-mail:yclin@csu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Grant No. 51775564), and the Natural Science Foundation for Distinguished Young Scholars of Hunan Province (Grant No. 2016JJ1017).

摘要: In this study, a strategy based on the particle swarm optimization (PSO) algorithm is developed to control the microstructures of a Ni-based superalloy during hot forging. This strategy is composed of three parts, namely, material models, optimality criterions, and a PSO algorithm. The material models are utilized to predict microstructure information, such as recrystallization volume fraction and average grain size. The optimality criterion can be determined by the designed target microstructures and random errors. The developed strategy is resolved using the PSO algorithm, which is an intelligent optimal algorithm. This algorithm does not need a derivable objective function, which renders it suitable for dealing with the complex hot forging process of alloy components. The optimal processing parameters (deformation temperature and strain rate) are obtained by the developed strategy and validated by the hot forging experiments. Uniform and fine target microstructures can be obtained using the optimized processing parameters, which indicates that the developed strategy is effective for controlling the microstructural evolution during the hot forging of the studied superalloy.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-019-00259-0

关键词: Processing parameters, Microstructure, Particle swarm optimization (PSO) algorithm, Superalloy

Abstract: In this study, a strategy based on the particle swarm optimization (PSO) algorithm is developed to control the microstructures of a Ni-based superalloy during hot forging. This strategy is composed of three parts, namely, material models, optimality criterions, and a PSO algorithm. The material models are utilized to predict microstructure information, such as recrystallization volume fraction and average grain size. The optimality criterion can be determined by the designed target microstructures and random errors. The developed strategy is resolved using the PSO algorithm, which is an intelligent optimal algorithm. This algorithm does not need a derivable objective function, which renders it suitable for dealing with the complex hot forging process of alloy components. The optimal processing parameters (deformation temperature and strain rate) are obtained by the developed strategy and validated by the hot forging experiments. Uniform and fine target microstructures can be obtained using the optimized processing parameters, which indicates that the developed strategy is effective for controlling the microstructural evolution during the hot forging of the studied superalloy.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-019-00259-0

Key words: Processing parameters, Microstructure, Particle swarm optimization (PSO) algorithm, Superalloy