Measurement of Internal Strain in Materials Using High Energy White X-Ray at SPring-8

Junichi Shibano; Takahisa Shobu; Kenji Suzuki; Koji Kiriyama; Kentaro Kajiwara; Hiroshi Kaneko; Michiaki Kobayashi

doi:10.4028/www.scientific.net/MSF.571-572.267

Paper Titles

Two-Dimensional Mapping of Crack-Face Bridging Stresses in Alumina Using Synchrotron Micro X-Ray Beam
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Application of Synchrotron Radiation to Residual Stress Analysis by IP/cosα Method
p.249

Influence of Peak Determination Method on Area Detector Type Neutron Stress Measurement
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The High Energy Materials Science Beamline at PETRA III
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Measurement of Internal Strain in Materials Using High Energy White X-Ray at SPring-8
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Inter-Granular Residual Stresses in Polycrystalline Aggregates: Finite Element Modelling and Diffraction Post-Processing
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Experimental/Modelling Study of Residual Stress in Al/SiC_p Bent Bars by Synchrotron XRD and Slitting Eigenstrain Methods
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Problems in the Averaging of Neutron Diffraction Stress Data from Round-Robin Campaigns
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Corrections for Residual Stress in X- Ray Grazing Incidence Technique
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Measurement of Internal Strain in Materials Using High Energy White X-Ray at SPring-8

Abstract:

This paper presents a basic research on a measurement of strain in the bulk of materials by using high energy white X-ray from a synchrotron radiation source of SPring-8 in Japan. A high-tensile strength steel (JIS-SHY685) was used as a specimen loaded with bending. Strain distribution in it was evaluated by the energy dispersive method using diffracted X-ray transmitted through the specimen. As a result, the internal strain of high-tensile steel of 5, 10 and 15 mm thickness could be evaluated using white X-ray which range of energy from 50 keV to 150 keV. The measurement with a high degree of accuracy was accomplished using α-Fe321 diffraction in this material. The results showed that the internal strain measurement in the depth of the order of millimeter using the high energy white X-ray is practicable at SPring-8.