| 摘要 |
FIELD: ferrous metallurgy, in particular, gray cast iron compositions which may be used in mechanical engineering. ^ SUBSTANCE: cast iron composition contains, wt%: carbon 3.0-3.5; silicon 1.0-1.5; manganese 1.0-2.0; nickel 3.0-4.0; chromium 1.0-2.0; copper 1.0-1.5; calcium 0.005-0.01; magnesium 0.005-0.01; aluminum 0.2-0.4; molybdenum 3.0-4.0; zirconium 0.4-0.8; nitrogen 0.1-0.2; iron the balance. ^ EFFECT: increased strength of cast iron. ^ 1 tbl |
