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Measurement of Residual and Applied Stress Using Neutron Diffraction (Paperback, Softcover reprint of the original 1st ed. 1992)
Loot Price: R1,609
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Measurement of Residual and Applied Stress Using Neutron Diffraction (Paperback, Softcover reprint of the original 1st ed. 1992)
Series: NATO Science Series E:, 216
Expected to ship within 10 - 15 working days
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The accurate, absolute, and non-destructive measurement of residual
stress fields within metallic, ceramic, and composite engineering
components has been one of the major problems facing engineers for
many years, and so the extension of X-ray methods to the use of
neutrons represents a major advance. The technique utilizes the
unique penetrating power of the neutron into most engineering
materials, combined with the sensitivity of diffraction, to measure
the separation of lattice planes within grains of polycrystalline
engineering materials, thus providing an internal strain gauge. The
strain is then converted to stress using calibrated elastic
constants. It was just over ten years ago that the initial neutron
diffraction measurements of residual stress were carried out, and
during the ensuing decade measurements have commenced at most
steady state reactors and pulsed sources around the world. So swift
has been the development of the field that, in addition to
fundamental scientific studies, commercial measurements have been
made on industrial components for several years now. The use of
neutrons is ideally suited to the determination of triaxial
macrostress tensors, macrostress gradients, and microstresses in
composites and multiphase alloys as well as deformed, plastically
anisotropic metals and alloys. To date, it has been used to
investigate welded and heat-treated industrial components, to
characterize composites, to study the response of material under
applied loads, to calibrate more portable methods such as
ultrasonics, and to verify computer modelling calculations of
residual and applied stress.
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