At the first stage, ductile
iron samples were boronized by using pack process at 900 _C for 1, 3, and 5 h and then, secondly tempered
at 250, 300, 350, and 400 _C for 1 h. X-ray diffraction (XRD) analysis of boro-tempered samples
showed that FeB and Fe2B phases were found on the surface of the samples