TURBINE BLADE, ITS MANUFACTURING METHOD AND METHOD OF MEASURING TURBINE BLADE STRESS AND TURBINE BLADE TEMPERATURE

摘要

PROBLEM TO BE SOLVED: To improve the toughness and heat resistance of a turbine blade or a turbine wheel using a TiAl based alloy. SOLUTION: The turbine blade comprises a turbine blade body containing a TiAl based alloy and a first coating 3 formed in a plating method to cover the turbine blade body 2 with a Ni containing material having toughness higher than that of the turbine blade body 2. It is acceptable that the first coating 3 contains Cd 4 and the first coating 3 is covered with a second coating of a heat resistant material such as Cr higher than that of the first coating 3. COPYRIGHT: (C)2003,JPO