CPC F03D 1/0675 (2013.01) [C23C 4/134 (2016.01); F03D 13/00 (2016.05)] | 12 Claims |
1. A wind turbine blade comprising:
a base member formed of FRP and having a blade shape;
an intermediate layer arranged on the base member and formed of metal, cermet, ceramic, or a composite material of resin and at least one of the metal, the cermet, or the ceramic; and
an erosion-resistant overcoat arranged on the intermediate layer and formed of a spray film having a porosity of 5% or lower,
wherein
the spray film forming the erosion-resistant overcoat is formed of cobalt alloy or cermet including tungsten carbide, and
the intermediate layer includes an intermediate spray film having a higher porosity than that of the spray film forming the erosion-resistant overcoat.
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