Effect of in-situ (Ti&W)C multiphase particles on three-body abrasive wear of high chromium cast iron

In this paper, the effect of in-situ (Ti&W)C multiphase particles on the microstructure and the three-body abrasive wear behavior of high chromium cast iron was investigated. The results reveal that the different W/ Ti ratios in the preforms can lead to significant differences in the microstructure and properties of the com-posites. The best microstructure and wear resistance of the composite (M3) is achieved when the W/Ti ratio is 4/ 6. Under the same wear conditions, the wear resistance of the M3 composite is more than twice as high as that of the matrix material. Furthermore, the presence of (Ti&W)C multiphase particles in the microstructure improves the hardness of high chromium cast iron, promoting its transition from cutting, fatigue, and the M7C3 fracture -exfoliation wear mechanism in the abrasive wear to micro-cutting and fatigue wear.

Automated summary

The effect of in-situ (Ti&W)C multiphase particles on the microstructure and three-body abrasive wear behavior of high chromium cast iron was investigated in this study. The different W/Ti ratios in the preforms resulted in significant differences in the microstructure and properties of the composites. The composite with a W/Ti ratio of 4/6 (M3) showed the best microstructure and wear resistance.