ferroalumen

例句：

1. 1. The steel is made from iron and carbon, with a small amount of nickel.
   这种钢由铁和碳制成，含有少量镍。
2. 2. The ferroalumen in the alloy has a high hardness and wear resistance.
   合金中的铁素体具有高硬度和耐磨性。
3. 3. The development of new ferroalumen alloys is crucial for the industry.
   新型铁素体合金的开发对行业至关重要。