Characterization of Borided DIN X165CrMoV12 Steel

Year 2018, , 904 - 908, 30.09.2018

Atila Gürhan Çelik

https://doi.org/10.31202/ecjse.458766

Abstract

In the present
study, characterization properties of borides formed on DIN X165CrMoV12 steel
have been investigated. Boriding was performed in a solid medium consisting of
Ekabor-II powders at 1073 and 1273K for 4 h. The boride layer was characterized
by optical microscopy, X-ray diffraction technique and the micro-Vickers
hardness tester.  X-ray diffraction
analysis of boride layers on the surface of the steels revealed the existence
of FexBy and CrxBy compounds. Depending on the chemical composition of
substrates, the boride layer thickness on the surface of the DIN X165CrMoV12
steel was found to be 32.75 μm and 78.92 μm at 1073 and 1173K for 4 h,
respectively. The hardness of the boride compounds formed on the surface of the
DIN X165CrMoV12 steel ranged from 1638 to 1892 HV_0,1, whereas
Vickers hardness values of the untreated steel DIN X165CrMoV12 was 432 HV0,1.

Keywords

DIN X165CrMoV12; Boriding; XRD; Micro-hardness.

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