Study of the properties of gray cast iron with added niobium for hot work. Research, Society and Development, [S. l.], v. 10, n. 13, p. e68101320112, 2021. DOI: 10.33448/rsd-v10i13.20112. Disponível em: https://rsdjournal.org/rsd/article/view/20112. Acesso em: 5 dec. 2025.