| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to metallurgy, particularly to compositions of addition alloys for steel. The alloy contains, mass.%: aluminium 5.0-10.0; calcium 0.5-1.0; magnesium 0.5-1.0; zirconium 20.0-30.0; copper 5.0-15.0; niobium 20.0-30.0; boron 3.0-5.0; iron constitutes the remaining percentage. The invention facilitates upgrading of hardness of alloyed steel. ^ EFFECT: upgraded hardness of alloyed steel. ^ 2 tbl |
