Engine Titanium Consortium - Center for Nondestructive Evaluation ...

Original
Revised
Description
Status
Date
Date
Sample fabrication
12-30
months
Acquire/fabricate the necessary samples. (GE with
support from PW, AS)
Complete
Fundamental property measurements
12 - 36
months
Acquire velocity, attenuation, backscattered noise,
and defect-echo data necessary to assess the
effects of microstructural anisotropy and surface,
curvature, etc., on forging inspections. (ISU with
support from GE, PW, AS)
18 months 24 months Provide velocity data for incorporation into the
noise model. (ISU with support from GE, PW, AS)
Complete techniques for curvature correction
approaches. (All)
24 months Provide surface curvature data for development of
curvature correction factors. Provide data to 1.3.2
for transducer design optimization. (ISU with
support from GE, PW, AS)
24 - 39
months
Validate noise models in cooperation with 3.1.2.
(All)
45 months Report of the effects of anisotropy and surface
curvature on inspection sensitivity for typical
titanium forgings used in aircraft engines.
45 months Initiate final report. (All)
45 months Techniques used to correct for geometry effects
including curvature correction factors.
54 months Complete final report. (All)
60 months Representative sample blocks of forging material or
fundamental property measurements.
Primary measurements required to
assess effects of microstructural
anisotropy completed using
property/flow line blocks). For
surface curvature effects see below
Complete
Complete
Work initiated using “Noise
Curvature Blocks” to assess
combined effects of surface
curvature and microstructure on
inspections, and to validate noise
models.
Deliverables:
Techniques to correct for geometry effects including curvature correction factors.
Report of effect of anisotropy and surface curvature on inspection sensitivity for typical titanium
forgings used in aircraft engines.
Representative sample blocks of forging material or fundamental property measurements.
Quarterly Report – January 1, 2002 –March 31, 2002
print date/time: 6/6/2002 - 8:39 AM – Page 52