INFLUENCE OF CARBON AND NITROGEN ADDITION ON THE CORROSION RESISTANCE OF Co-28Cr-6Mo-0,8Si-0,8Mn-0,4Fe-0,2Ni ALLOYS - Rokhmanto, Fendy; Pusat Penelitaian Metalurgi dan Material, Lembaga Ilmu Pengetahuan Indonesia (Pusbindiklat Peneliti - LIPI, 2018)