Study of corrosive process and life prospect of API 5L X70 steel with and without niobium coating on chemically treated soil. Research, Society and Development, [S. l.], v. 8, n. 9, p. e20891238, 2019. DOI: 10.33448/rsd-v8i9.1238. Disponível em: https://rsdjournal.org/rsd/article/view/1238. Acesso em: 5 dec. 2025.