LANGDON, T. G. Processing of ultrafine-grained materials using severe plastic deformation: potential for achieving exceptional properties. Revista de Metalurgia, [S. l.], v. 44, n. 6, p. 556–564, 2008. DOI: 10.3989/revmetalm.0838. Disponível em: https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/143. Acesso em: 28 apr. 2024.