Effect of Chemical Composition of Boriding Agent on the Optimization of Surface Hardness and Layer Thickness on AISI 8620 Steel by Solid and Liquid Boriding Processes

Abstract Surfaces of cam shafts made AISI 8620 steels were hardened by boriding processes in both solid and liquid mediums. Various chemical agents used to achieve boride layers on the surfaces these processes. It was aimed examine effects microhardness thickness obtained. concluded that a bath composition 5% B 4 C-90% SiC-5% KBF appropriate for hardest thickest layer achieved medium, 70% Na 2 O 7 -30% C medium.