Study on the Turbine Vane and Blade for a 1500°C Class Industrial Gas Turbine

Abstract

This paper describes the summary of a three year development program for the 1st stage stationary vane and rotating blade for the next generation, 1500°C Class, high efficiency gas turbine. In such a high temperature gas turbine, the 1st turbine vane and blade are the most important hot parts. Full coverage film cooling (FCFC) is adopted for the cooling scheme, and directionally solidified (DS) nickel base super-alloy and thermal barrier coating (TBC) will be used to prolong the creep and thermal fatigue life. The concept of the cooling configuration, fundamental cascade test results and material test results will be presented.

Ultrasonic Characterization of Nickel-Chromium-Base Anticorrosive Coatings

“…However, there are not well-established NDE methods to characterize the bonding between the metal base and the coating. This is a crucial point for the adecuate performance of the coatings, specially when they are applied on turbine blades to prevent mechanical wear of this kind of components [2].…”