Discussion on Accuracy of Weld Residual Stress Measurement by Neutron Diffraction -Influence of Strain Free Reference-
نویسندگان
چکیده
منابع مشابه
Study on Measurement Technique for Lattice Spacing at Strain Free by Neutron Diffraction Method
For precise stress analysis of engineering materials by diffraction methods, the lattice spacing of strain-free materials, d0, must be accurately measured and determined. In this study, a new and easy technique of measuring the specimen is proposed which involves using the original material instead of its powder form for accurate estimation of d0 . The value of d0 obtained by our technique is e...
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Cold drawing is widely applied in the industrial production of seamless tubes, employed for various mechanical applications. During pre-processing, deviations in tools and their adjustment lead to inhomogeneities in the geometry of the tubes and cause a gradient in residuals. In this paper a three dimensional finite element (3D-FE)-model is presented which was developed to calculate the change ...
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Precise measurement of a stress-free reference lattice parameter is vital in the determination of residual stress by diffraction techniques using /2-based analyses. For the evaluation of the residual strain profile in fusion-welded material, it is particularly important to correct the measured strain point-by-point by a stress-free reference for each spatial location across the weld. This is ...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 2012
ISSN: 0514-5163,1880-7488
DOI: 10.2472/jsms.61.604