MULTI-FUNCTION ANTIFRICTION NANOSTRUCTURE WEAR-RESISTANT DAMPING ALLOYS WITH SHAPE MEMORY EFFECT ON METASTABLE BASIS OF IRON WITH STRUCTURE OF HEXAGONAL ε-MARTENSITE, AND ITEMS USING THESE ALLOYS WITH EFFECT OF SELF-ORGANISATION OF NANOSTRUCTURE COMPOSITIONS, SELF-STRENGTHENING AND SELF-LUBRICATION OF FRICTION SURFACES, WITH EFFECT OF SELF-DAMPING OF VIBRATIONS AND NOISES Russian patent published in 2012 - IPC C22C38/02 C22C38/04 C22C38/10 C22C38/12 C22C38/14 C22C33/02 C22C33/04 B82B1/00 

FIELD: metallurgy.

SUBSTANCE: alloy contains the following, wt %: carbon 0.001 - 0.3, manganese 5.0 - 44.0, nitrogen 0.03 - 0.12, and iron is the rest; at that, its structure contains 5 - 95% of ε-martensite phase, and γ-austenite and/or α-martensite is the rest. Alloy can also contain 0.5 - 8.0 wt % of silicium and/or cobalt and one or several elements of the group: titanium 0.06 - 1.0, vanadium 0.06 - 0.20 and niobium 0.05 - 0.20.

EFFECT: alloy has high damping and antifriction properties, wear resistance and shape memory effect, which allows using it for manufacture of items having the effect of self-organisation of nanostructure compositions on intense friction surfaces, effect of self-strengthening, self-lubrication, self-damping of vibrations and noises, which are used for operation at normal and negative temperatures.

9 cl, 13 dwg, 4 tbl