FIELD: metallurgy.
SUBSTANCE: invention relates to an alloy obtained by powder metallurgy and having a non-amorphous matrix which contains, wt. %: C 0–2.5, Si 0–2.5, Mn 0–15, Mo 4–35, B 0.2–2.8, Cr 3–25, V≤15, Nb≤15, Ti≤5, Ta≤5, Zr≤5, Hf≤5, Y≤3, Co≤20, Cu≤5, W≤22, S≤0.5, N≤0.5, Al≤7, REM value 0.5, balance is Fe and/or Ni. Alloy contains 3–35 vol. % solid phase particles containing at least one of borides, nitrides and carbides. At least 90 % of particles of solid phase have size less than 5 mcm, and at least 50 % of solid phase particles have size in range of 0.3–3 mcm.
EFFECT: high corrosion resistance, hardness, resistance to abrasive wear and galling.
21 cl, 2 tbl, 1 dwg, 4 ex
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Authors
Dates
2019-10-08—Published
2015-12-15—Filed