Castillo Chung, Aldo Roger, César Alejandro Molina Rodriguez, Edinson Juan Reyes Valderrama, Hans Roger Portilla Rodriguez, César Pol Arévalo Aranda, Juan Antonio Vega González, and Alexander Yushepy Vega Anticona. “Plasma Nitriding of AISI 431 Steel: Surface Hardness - Hardness Profile [Nitruración Por Plasma Del Acero AISI 431: Dureza Superficial – Perfil De Durezas]”. Journal of Sciences and Engineering 4, no. 2 (December 3, 2020): 22–32. Accessed June 15, 2026. https://www.journals.cincader.org/index.php/sej/article/view/63.