Title of article
Optimization of neutron tomography for rapid hydrogen concentration inspection of metal castings
Author/Authors
Gibbons، نويسنده , , Matthew R and Richards، نويسنده , , Wade J and Shields، نويسنده , , Kevin، نويسنده ,
Pages
5
From page
53
To page
57
Abstract
Hydrogen embrittlement describes a group of phenomena leading to the degradation of metal alloy properties. The hydrogen concentration in the alloy can be used as an indicator for the onset of embrittlement. A neutron tomography system has been optimized to perform nondestructive detection of hydrogen concentration in titanium aircraft engine compressor blades. Preprocessing of backprojection images and postprocessing of tomographic reconstructions are used to achieve hydrogen concentration sensitivity below 200 ppm weight. This paper emphasizes the postprocessing techniques which allow automated reporting of hydrogen concentration.
Keywords
neutron computed tomography , Neutron radiography , hydrogen embrittlement , Nondestructive Testing
Journal title
Astroparticle Physics
Record number
2008573
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