ANCHEV, A. .; STOYANOV, B. .; ATANASOVA, M. .; ARGIROV, Y. .; PETKOV, B. . Improving in microhardness of C45 steel obtained via electron beam hardening using a one-factor-at-a-time technique. International Journal of Innovative Research and Scientific Studies, [S. l.], v. 8, n. 5, p. 1255–1270, 2025. DOI: 10.53894/ijirss.v8i5.9089. Disponível em: https://www.ijirss.com/index.php/ijirss/article/view/9089. Acesso em: 5 dec. 2025.