#TITLE_ALTERNATIVE#

• Main Author: MARTIN PRADIPTA (NIM : 13713062), JONATHAN
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/28305
• Institution: Institut Teknologi Bandung

<br /> <br /> <br /> <br /> Manganese steels are commonly used for abrasive wear components because they can undergo a martensitic transformation when the surface undergoes plastic deformation. To improve resistance to cracks, toughness should be improved. The usual heat treatment process for steel in as-cast conditions is a one-stage heat treatment process at 1100&#8451; followed by a rapid colling process. In this study, four types of two-stage heat treatment have been performed. In the first and second heat treatment, the first stage heating was carried out at temperatures of 5950C and 620&#8451; for 10 hours, followed by a second stage heating performed at 980&#8451; for 2 hours, then a quenching was performed. Meanwhile, in the third, fourth and fifth heat treatments, the first stage heating was carried out at 700 &#8451;, 675 &#8451;, and 650 &#8451; for 3 hours, followed by a second stage heating performed at 1000 &#8451; for 1.5 hours, then a quenching was performed. The comparison of the toughness ratio of the heat treated tensile sample test results showed that the two-stage heat treatment with the first stage heating at 675 &#8451; for 3 hours followed by the second stage heating at 1000 &#8451; for 1.5 hours resulted in the best toughness ratio. <br />