PENGARUH SOLUTION TREATMENT DAN MEDIA PENDINGIN PADA PROSES HOT ROLLING TERHADAP KEKUATAN BAJA MANGAN AUSTENITIK

A steel with high hardness but relatively low ductility and toughness is called austenitic manganese steel. This implementation often suffers from defect failure. Responding to this problem, the study was done by manipulating a heat treatment process in order change microstructure, refine grain, improve its mechanical properties thereby increasing toughness. It begun heating austenizing temperature (1000°C) holding for 100 minutes. The solution carried out hot rolling of 1100 °C. Quenching using water cooler ice as media. Temperature variation selection aimed find phase microstructure effect on properties. In cooling, indicated significant little martensite more dominant austenite ferrite microstructure. phenomenon gave reduction which turn increase tensile elongation test result. Therefore, result cooling will have better lifetime industrial world.