Residual and Applied Stress Characterization of NiAl Bronze using X-Ray Diffraction

PDF

Authors
  1. Brauss, M.
  2. Porter, J.
  3. Belassel, M.
  4. Hyatt, C.
  5. Pineault, J.
Corporate Authors
Proto Mfg, Oldcastle ONT (CAN);Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The ability to accurately quantify the residual strains in NiAl bronze components enables a more complete understanding and improved prediction of potential failure mechanisms. The application of x-ray diffraction methods to the measurement of residual strains, while long accepted, has been limited to laboratory based experimentation. In addition, the challenges associated with diffraction measurements in large grained materials have made the application of these technologies to large NiAl bronze castings and components problematic. Developments to create a portable miniature x-ray diffractometer (MXRD) have permitted the field application of diffraction technologies. Specific recent enhancements to optimize the performance of the system, including implementation of automatic psi (psi) axis oscillation for large grained materials now permits the characterization of residual strains in these materials, not only in laboratory but also in field experimentation. This presentation outlines the recent MXRD developments, including results obtained from evaluations of NiAl bronze samples loaded in four point bending.
Keywords
Nickel aluminum bronzes
Report Number
DREA-SR-1999-162-PAP-43 — CONTAINED IN CA000150
Date of publication
01 Oct 1999
Number of Pages
1
DSTKIM No
CA000193
CANDIS No
511917
Format(s):
Hardcopy;Document Image stored on Optical Disk

Permanent link

Document 1 of 1

Date modified: