Journal Article

Deep Learning Model to Predict Ice Crystal Growth

Yu, Chi‐Hua, Chien, Yu‐Chen, Wang, Jyn‐Ping, Tseng, Bor‐Yann, Guo, Chen‐Wei Conan

2023

Overview

The demand for highly specific and complex materials has made the development of controllable manufacturing processes crucial. Among the numerous manufacturing methods, casting is important because it is economical and highly flexible regarding the geometry of manufactured parts. Since solidification is an important stage in the casting process that influences the properties of the final product, the development of a controllable solidification process using modeling methods is necessary to create superior structural properties. However, traditional modeling methods are computationally expensive and require sophisticated mathematical schemes. Therefore, a deep learning model is proposed to predict the morphology of the dendritic crystal growth solidification process, along with a reinforcement learning model to control the solidification process. By training the deep learning model with data generated using the phase field method, the solidification process can be successfully predicted. The crystal growth structures are designed to be altered by adjusting the degree of supercooling in the deep learning model while implementing reinforcement learning to control the dendritic arteries. This research opens new avenues for applying artificial intelligence to the optimization of casting processes, with the potential to utilize it in the processing of advanced materials and to improve the target properties of material design. This work investigates a design framework that integrates machine learning to control and optimizes dendrite structures. A ResNet‐U‐Net surrogate model is successfully developed and trained to predict the phase evolution of dendrite structures. Meanwhile, the deep deterministic policy gradient is implemented to manage simulation parameters, ultimately generating structures with desired properties.

• Publisher: John Wiley and Sons Inc,Wiley
• Subject: casting / dendritic structure / generative model material / reinforcement learning / solidification