de Matos, Pamela, Charles Leonardo Israel, and Leandro de Freitas Spinelli. 2019. “ASTM F138 Steel Metallurgical Characterization and CTOD Analysis Applicable to Orthopedic Implants”. American Scientific Research Journal for Engineering, Technology, and Sciences 62 (1):179-91. https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/5390.