| 摘要 |
The invention relates to a heat-resistant bearing material made of an austenitic iron matrix alloy having a proportion of sulphur which is sufficient for achieving a solid lubricating action on the bearing surfaces thereof, a proportion of carbides which is sufficient for achieving a reduction in wear on the bearing surfaces thereof, and a proportion of 1 to 6% by weight of one or more of the alloying elements cobalt (Co) , rhenium (Re), tatalum (Ta), vanadium (V), hafnium (f), yttrium (Y), zirconium (Zr), characterized by the following further alloying elements, in each case in % by weight: carbon (C) = 0.8 - 1.5; chromium (Cr) = 20 - 32; manganese (Mn) = 0 - 1.0; silicon (Si) = 1.5 - 3.5; nickel (Ni) = 12-25; molybdenum (Mo) = 0.5 - 5.5; niobium (Nb) = 0 - 3.5; tungsten (W) = 1.0 - 6.5; sulphur (S) = 0.15 - 0.5; copper (Cu) = 0 - 3.5; nitrogen (N) = 0 - 0.8 and iron (Fe) as remainder including unavoidable impurities. |
