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.