Strain Measurement in the Depth of the Order of Millimeter Using High Energy White X-Rays

Abstract:

The strain in the bulk of material was evaluated using high energy white X-rays from a synchrotron radiation source of SPring-8 in Japan. An austenitic stainless steel (JIS-SUS304L) was used for a specimen. The specimen of 5 mm thickness was subjected to the bending. The internal strain of it could be measured using white X-rays which range of energy from 60 keV to 125 keV. The measurement of the internal strain with a high accuracy was accomplished using the strain data from several lattice planes of γ-Fe simultaneously. Furthermore, the measurement error of strain could be decreased by using the diffracted beam with high energy, high peak count and the similar profile with the Gaussian distribution. The results showed that the high energy white X-rays is effective for the internal strain measurement in the depth of the order of millimeter.

• Periodical: Key Engineering Materials (Volumes 324-325)
• Pages: 1225-1228
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.324-325.1225
• Online since: November 2006
• Authors: Tomoyuki Hirata, Junichi Shibano, Takahisa Shobu, Kenji Suzuki, Hiroshi Kaneko, Michiaki Kobayashi
• Keywords: Energy Dispersive Method, High Energy White X-Rays, Internal Strain, Non-Destructive Evaluation (NDE), Synchrotron Radiation (XRD)

References

This article has no references.