Effect of Fe2B orientation morphology on high temperature erosion-wear behavior of Fe-B alloy in liquid zinc

The interface erosion-wear behaviors of Fe-B alloy with different Fe2B orientations in flowing zinc at 460 degrees C were studied. The results revealed that, for a rotation speed of 100 rpm, the directional Fe-B alloy with a Fe2B perpendicular to interface structure (the [002] orientation of Fe2B) exhibits the best erosion-wear resistance. Moreover, the relationship between the Fe2B orientation and ferrite matrix had a significant effect on the erosion-wear microdamage mechanism. Parallel Fe2B zinc suppressive layers were formed at the Fe2B perpendicular to interface, thereby preventing erosion of the matrix by the liquid zinc. Furthermore, Fe-Zn products such as delta-FeZn10 and zeta-FeZn13 formed near the liquid zinc. During the damage process, the directional Fe2B and ferrite matrix structure exhibited a good protective and supporting effect, which combined to reduce the weight loss associated with the damage.

Automated summary

The study found that the Fe-B alloy with Fe2B perpendicular to the interface structure exhibited the best erosion-wear resistance, forming suppressive layers to prevent erosion by liquid zinc. The relationship between Fe2B orientation and ferrite matrix significantly influenced the erosion-wear microdamage mechanism.