Evaluation of the stress field in a ground steel plate from energy-dispersive X-ray diffraction experiments

✍ Scribed by H. Ruppersberg; I. Detemple

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 377 KB
• Volume: 161
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/0921-5093(93)90473-r

✦ Synopsis

We show that energy-dispersive X-ray diffraction is a very powerful tool for the investigation of complex stress fields which occur in the surface region of polycrystalline materials after plastic deformation. The interplanar spacings of 11 lattice planes of a ground steel plate were investigated for ~0 angles up to 88 °, covering a penetration depth of the X-rays from 0.04 to 60 pm. The results were evaluated according to a novel formalism and yield the variation in the residual stress components at l(z) and cr22(z) with the depth z below the ground surface. The formalism and the results are critically discussed.