FIELD: metallurgy.
SUBSTANCE: invention can be used as a structural material for parts operated at high mechanical and thermal loads, for example, pistons of augmented ICEs operated at 350°C and higher. Proposed composition contains the following substances, in wt %: silicon - 12.05…14.65, nickel - 2.80…3.40, iron - 1.50…1.70, aluminium oxide - 1.05…1.30, carbon - 1.35…1.65, aluminium making the rest.
EFFECT: lower thermal expansion factor, higher heat and wear resistance.
4 dwg, 3 tbl
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