The effectivity of used-oil as quenching medium of 42-CrMo4 steel for automotive materials

• Váldodahkkit: Hariningsih, Hariningsih, Sumpena, Sumpena, Sukarjo, Heribertus
• Materiálatiipa: UMS Journal (OJS)
• Giella: eng
• Almmustuhtton: Universitas Muhammadiyah Surakarta 2020
• Fáttát: Hardening-quenching; Hardness; Martensite; 42CrMo4 steel; Used-oil
• Liŋkkat: https://journals2.ums.ac.id/index.php/arstech/article/view/11

The research aims to investigate the effect of the cooling medium on the hardness characteristic and microstructure of the 42CrMo4 steel due to hardening treatment at a temperature of 830°C and holding time of 30 minutes. Various oil such as SAE-10W40, SAE-20W50, SAE-40, and used oil was used in the...