Pengaruh Variasi Temperatur Proses Austempering Terhadap Mikrostruktur dan Sifat Mekanik Baja Armour

Armour steel is a medium-carbon which widely used in military and defense industries owing to its ability protect from projectile bullet pressure. However, this armour still posses mechanical limitation aspect, thus it needed engineer for improvement. Therefore, the aim of research undergo properties engineering by using heat treatment method austempering within temperature variations 200, 250, 350, 450, 500 oC . Experimental results show that process affected fraction quantity phase microstructure ferrite, pearlite, bainite. resulted depicts transformation improvement significantly. Microstructure along with proportional volume phases upper bainite, pearlite highly beneficial increase impact strength dan ductility steel. Thereby, has thoroughly increased capable be applied industries.