The Effect of Boriding And Heat Treatment on the Structure and Properties of 100Cr6 Steel

The main aim of this case study is to present the changes caused by heat treatment on structure and properties 100Cr6 steel annealing, hardening, tempering in combination with previous chemical-heat (CHT) boriding. boriding causes microstructure samples, which include a change morphology deposited cementite volume chromium carbide particles. transformed from its original granular form lamellar form. An increase proportion particles sample occurs due higher affinity for carbon. This leads precipitation carbides rather than iron. A multi-phase diffusion layer Fe2B-FeB thickness 31 ± 2.8 µm formed during boriding, typical tooth-like texture. Although does not have same toughness resistance as single-phase Fe2B layer, samples after their tribological abrasion 29 % compared without treatment. After quenching borided maximum tensile strength Rm = 1779 MPa measured. Compared are only quenched subsequently tempered, an about 59 %.