期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.procir.2016.09.005
关键词
Fringe projection; thermography; high-frequency eddy current testing; turbine blade; wear; damage
资金
- German Research Foundation (DFG) within the Collaborate Research Center (CRC) [871]
This paper presents four complementary non-destructive measurement techniques for material characterization and damage detection of turbine blades. The techniques are macroscopic fringe projection with inverse fringe projection algorithms, robot guided microscale fringe projection, high frequency eddy current and pulsed high frequency induction thermography, both in the megahertz range. The specimen on which the measurements were carried out is a blade of the 1st stage high pressure turbine of a modern airplane jet engine. The turbine blade was characterized with regard to the macroscopic and microscopic geometry, cracks in the base material as well as the condition of the protective layer system. (C) 2016 The Authors. Published by Elsevier B.V.
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