Skip to main content Accessibility help
×
Home

X-Ray Residual Stress Mapping in Industrial Materials By Energy Dispersive Diffractometry

  • C. J. Bechtoldt (a1), R. C. Placious (a1), W. J. Boettinger (a1) and M. Kuriyama (a1)

Abstract

An application of energy dispersive diffractometry to the measurement of residual strains (stresses) in the interior of industrial materials is described with particular emphasis on the use of high energy (up to 250 keV) x-ray photons. The use of high energy photons permits better penetration into materials. Hence diffraction data for evaluating bulk residual strains can be obtained in the transmission geometry in contrast with the conventional angular dispersive diffractometry, which uses Bragg reflections from the surface of materials. The reliability and sensitivity (detectability of small strains) of the energy dispersive method are demonstrated through its application to mapping of residual stress distributions across weld zones in Alaskan pipe line segments (API5LX65). The detectability of strain variations within materials depends on x-ray optical resolution and statistics.

Copyright

References

Hide All
1. Cohen, J. B., H. Dölle and James, M. E., Proceedings of Symposium on Accuracy in Powder Diffraction in : “NBS Special Publ. 567,” p. 453 (1980).
2. Giessen, B. C. and Gordon, G.E., Science 159 973 (1968).
3. Leonard, L., “Franklin Institute Research Lab Report F-C3454,” Philadelphia, July (1973).
4. Kuriyama, M., Boettinger, W.J. and Burdette, H.E., ASNT National Fall Conference, p. 49 (1978), October, Denver, CO.
5. Kuriyama, M., Boettinger, W.J. and Burdette, H.E., Proceedings of Symposium on Accuracy in Powder Diffraction, “NBS Special Publ. 567,” p. 479 (1980).
6. Kuriyama, M., Proc. of Synposium on Nondestructive Measure of Wheel/Axle Residual Stress, Dept. of Transportation, (1981). In print.
7. Laine, E., Lahteenmaki, I. and Kantola, M., X-Ray Spectrometry, 193 (1972).
8. Kukamachi, T., Rosoya, S. and Terasaki, D., J. Appl. Cryst. 6 117 (1973).

X-Ray Residual Stress Mapping in Industrial Materials By Energy Dispersive Diffractometry

  • C. J. Bechtoldt (a1), R. C. Placious (a1), W. J. Boettinger (a1) and M. Kuriyama (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.