Patent ID: 9032812
Filing Date: 2015-05-19
Classification: F01D,F05D,G01M,G01N

Abstract:
1. A method for determining creep capability of turbine components, comprising: coupling a plurality of turbine components to a spin test rig, wherein the plurality of turbine components are fabricated from a material having known creep characteristics; subjecting each of the plurality of turbine components to centrifugal stress and thermal stress in the spin test rig until a measurable amount of creep is induced in the turbine component; measuring the amount of creep induced in each of the plurality of turbine components; determining the accumulation rate for each of the plurality of turbine components; comparing one of the measured amount of creep induced in each of the plurality of turbine components and the accumulation rate for each of the plurality of turbine components to a pre-defined tolerance value; and placing into service only those turbine components identified as having measured amounts of induced creep that do not exceed the pre-defined tolerance value.