| 摘要 |
A rotor (10) for a turbomachine, comprising at least one first, preferably disk-like rotor section (12), which is exposed to high operating temperatures and consists of a particularly creep-resistant material, in particular a nickel-based alloy, and at least one second, preferably disk-like rotor section (11), which is exposed to lower operating temperatures and consists of a less creep-resistant material, in particular steel, the first and second rotor sections (11, 12) being joined to one another by welding. In a rotor of this type, a crack-free welded joint is achieved by the fact that, to join the two rotor sections (11, 12), a transition region (13) is arranged between the two rotor sections (11, 12), which transition region is produced by powder metallurgy, is welded to one of the two rotor sections (11, 12) at least on one side, and on this side has the same composition as the rotor section to which it is welded.
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