Fracture analysis and countermeasures of the grid switch castingsChao Feng, Siyuan Yang, Qiao Li, Mengbao Zhou, Songqi Wu, Jiarui Hu, Yi Xie, Wun Wang, Yi Long and Weike LiuE3S Web Conf., 165 (2020) 06015DOI: https://doi.org/10.1051/e3sconf/202016506015