The results show that the as-cast structures of Fe-B-C alloy consist of the pearlite,the ferrite,the martensite,and the boride (Fe2B). The Fe2B boride is continuous network and is distributed along the grain boundary.

• 结果表明,Fe-B-C合金的铸态组织由珠光体、铁素体、马氏体和高硬度的Fe2B组成,Fe2B沿晶界呈网状分布。