SHEIKH, M. A. Influence of Austempering Heat Treatment on Ductile Iron. Pakistan Journal of Engineering and Technology, [S. l.], v. 2, n. 2, p. 38–40, 2019. DOI: 10.51846/vol2iss2pp38-40. Disponível em: https://journals.uol.edu.pk/pakjet/article/view/87. Acesso em: 6 jul. 2025.