Abstract
Recentry, boriding has attracted extensive attention as surface stiffening processing. Boriding is a method of diffusing and permeating boron on the surface of a metal material. In this research, the influence of processing time on the formation layer of Inconel 600 by Al added fused salt bath was examined. In addition, in order to improve the surface hardness and abrasion resistance of Inconel 600, the effect of the treatment of boriding on the formation layer has been investigated. Boriding were performed in molten borax which contained about 10 mass% Al at processing time of 0.5 ~ 2.0 h (processing temperature of 950℃). As a result of the examination, the hardness of the boriding layer becomes about 2000 HV in any times and the boriding layer becomes thicker with processing time. Also the abrasion resistance has improved remarkably. Furthermore, it was revealed that the formation layer was boronized Ni from the Vickers hardness and analysis of the X-ray diffraction measurement.
