| 摘要 |
FIELD: ferrous metallurgy, namely cast iron compositions, possibly manufacture of articles used in machine engineering. ^ SUBSTANCE: cast iron contains, mass.%: carbon, 2.8 - 3.2; silicon, 0.8 - 1.2; manganese, 0.8 - 1.2; magnesium, 0.03 - 0.08; copper, 1.0 - 1.5; cerium, 0.08 - 0.16; boron, 0.05 - 0.1; niobium, 1.0 - 2.0; nitrogen, 0.05 - 0.1; molybdenum, 4.5 - 5.5; vanadium, 1.0 - 2.0; iron, the balance. ^ EFFECT: improved strength of cast iron. ^ 1 tbl |
