| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the reliability of a gas turbine by suppressing occurrence of any crack under the high-temperature and high-stress environment of a rotor assembly of the gas turbine. <P>SOLUTION: The gas turbine includes a compressor for executing the adiabatic compression of air sucked from the atmosphere, a combustor for generating combustion gas by mixing a fuel in compressed air and burning the air-mixed fuel, and a turbine which inflates the combustion gas, generates the rotational power, and drives the generator. The turbine includes a rotor disk with a plurality of rotating blades being fitted to its outer circumference, and a turbine rotor having a rotor shaft integrated with the rotor disk. A turbine rotating blade embedded part of the turbine rotor disk has a thermal spraying multilayer consisting of nickel, chromium or an alloy thereof formed by the thermal spraying. In the rotor assembly of the gas turbine, the thermal spraying layer contains 25-33% oxide in terms of the cross-sectional area ratio. <P>COPYRIGHT: (C)2012,JPO&INPIT |
