Effect of yttrium addition on inclusion formation in 0.5C-1Cr-0.2Mo-0.1V spring steel: thermodynamic and experimental analysesHebin Wang, Mengran Zhou, Jiasheng Ge, Ping Ou, Shengci Li, Tonghan Yang, Ming Chen, Wei Zhang, Hongwei Li, Chaobin Lai and Xiaogang YangMetall. Res. Technol., 123 1 (2026) 123DOI: https://doi.org/10.1051/metal/2025121