Study on abrasive wear resistant of several surface abrasion resistance treatment techniques
FENG Kun
LI Yi
ZHANG Dong-ya
Abstract：Two groups of Fe-Cr-C hardfacing alloy and Fe-Cr-C-NbC hardfacing alloy were prepared by surface welding technology.The YG8 samples were prepared by induction brazing technology.The microstructure and abrasion wear-resisting property of different surface hardening treatment samples were studied.The results show that the microstructure of the Hypoeutectic Fe-Cr-C hardfacing alloy is mainly martensite and eutectic carbide,and its abrasion wear-resisting property is better than that of 40Cr quenched steel.After adding NbC to 3％ ～5％,a large amount of dispersed NbC hard phase formed in the surfacing alloy layer,which hinders the cutting action of the abrasive particles on the substrate,and its wear resistance is 3.3 times that of the Fe-Cr-C surfacing alloy layer.YG8 hardness is 1 280 HV,and the relative wear resistance is 29.8 times of the Fe-Cr-C surfacing alloy layer,showing a high wear resistance.
Keywords：Fe-Cr-C hardfacing alloyNbCcemented carbidemicrostructureabrasion wear-resisting property
Publication Date：2017-03-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 50-53 )