| 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), tantalum (Ta), vanadium (V), hafnium (Hf), 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. |
