High-Resolution Neutron Diffraction for Nondestructive Analysis of Residual Stresses in Polycrystalline Materials

Abstract:

The performance of an unconventional high-resolution neutron diffractometer using Bragg diffraction optics that can be efficiently employed in strain/stress diffractometers are reported. Presented results demonstrate their experimental abilities for powder diffraction, namely for residual strain/stress measurements. In addition to the macrostrain scanning capability, the device can also be used for microstrain/stress studies by suitable analysis of the diffraction profiles. Two examples of the strain measurements are presented.

• Periodical: Applied Mechanics and Materials (Volumes 3-4)
• Pages: 331-336
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.3-4.331
• Online since: August 2006
• Authors: Pavol Mikula, Petr Lukáš, Miroslav Vrána
• Keywords: Focusing Techniques, Neutron Diffraction, Polycrystalline Materials, Residual Strains

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