G. C. Pereira, M. E. dos Santos, and D. B. de Alencar, “Application of Black Oxidation in Carbon Steel Parts in a Tool Company”, ijaers, vol. 6, no. 6, Oct. 2019, Accessed: Jul. 22, 2024. [Online]. Available: https://journal-repository.com/index.php/ijaers/article/view/622