MANGAI, M. M.; BOT, D. M.; MUHAMMAD, M. H. Effect of Cryogenic Treatment on the Microstructure and Mechanical Properties of ARC- Welded D2 Tool-Steel Joints Fabricated from Recycled Leaf Spring Scrap. Direct Research Journal of Engineering and Information Technology, [S. l.], v. 14, n. 3, p. 106–112, 2026. DOI: 10.4314/drjeit.v14i3.8. Disponível em: https://journals.directresearchpublisher.org/index.php/drjeit/article/view/908. Acesso em: 1 nov. 2026.