SUGIANTORO , Bambang; SAKURI, Sakuri; SUSANTO, Tarsono Dwi; PRAHARTO, YB; SUTISNA, Utis; PRATIWI, Yuliyanti Dian. Analysis of Strength Improvement and Crystallographic Tranformations In an Isothermal Oil Quenched on Martempering AISI 4140. Technium: Romanian Journal of Applied Sciences and Technology, Constanta, Romania, v. 22, p. 138–145, 2024. DOI: 10.47577/technium.v22i.10865. Disponível em: https://www.techniumscience.com/index.php/technium/article/view/10865. Acesso em: 17 apr. 2026.