Heredity of primary Fe2B in remelted hypereutectic Fe-C-B alloys and its uniform treatment

The heredity of primary Fe2B in the solidification structure of hypereutectic Fe-C-B alloys and a uniform treatment method were investigated by remelting and electric pulse treatment. The results show that it is difficult to eliminate the heredity of primary Fe2B only by remelting. When exerting electric pulse at a lower remelting temperature, it changes the distribution of primary Fe2B in the solidification structure but does not change the long rod shape. But when exerting electric pulse at a higher remelting temperature, it can eliminate the effect of solidification structure heredity, the shape of Fe2B changes from the long rod shape to particle shape, and the precipitation of Fe2B decreases obviously.