| 简介 |
A Ni-based single crystal superalloy which has the following composition : Co : 0.0 wt% or more to 15.0 wt% or less, Cr : 4.1 to 8.0 wt%, Mo : 2.1 to 4.5 wt%, W : 0.0 to 3.9 wt%, Ta : 4.0 to 10.0 wt%, Al : 4.5 to 6.5 wt%, Ti : 0, 0 to 1, 0 wt%, Hf : 0.00 to 0.5 wt%, Nb : 0, 0 to 3.0 wt%, Re : 8.1 to 9.9 wt% and Ru : 0.5 to 6.5 wt% with the remainder including Ni and unavoidable impurities. As a result, the Ni-based single crystal superalloy which includes more than 8 wt% of Re in the composition ratio and has excellent specific creep strength and the turbine blade incorporating the Ni-based single crystal superalloy may be made. |
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