Journal ArticleDOI
Residual stress. Part 1 – Measurement techniques
TLDR
In this paper, the effect of residual stresses on fatigue lifetimes and structural integrity are first summarised, followed by the definition and measurement of residual stress, which are characterised according to the characteristic length scale over which they self-equilibrate.Abstract:
Residual stress is that which remains in a body that is stationary and at equilibrium with its surroundings. It can be very detrimental to the performance of a material or the life of a component. Alternatively, beneficial residual stresses can be introduced deliberately. Residual stresses are more difficult to predict than the in-service stresses on which they superimpose. For this reason, it is important to have reliable methods for the measurement of these stresses and to understand the level of information they can provide. In this paper, which is the first part of a two part overview, the effect of residual stresses on fatigue lifetimes and structural integrity are first summarised, followed by the definition and measurement of residual stresses. Different types of stress are characterised according to the characteristic length scale over which they self-equilibrate. By comparing this length to the gauge volume of each technique, the capability of a range of techniques is assessed. In the sec...read more
Citations
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Book ChapterDOI
Nondestructive Characterization of Residual Stress Using Micromagnetic and Ultrasonic Techniques
Madalina Rabung,Meisam Sheikh Amiri,Michael M. Becker,Melanie Kopp,Ralf Tschuncky,Ines Veile,Fabian Weber,Miriam Weikert-Müller,Klaus Szielasko +8 more
TL;DR: In this article, the authors provide an overview regarding the local and volumetric measurement, characterization and evaluation of macroand micro-residual stress by means of micromagnetic and ultrasonic techniques.
Journal ArticleDOI
Substrate and elastic recovery effects in hardness measurement of CVD WC-based coatings
D. Di Maio,Steve G. Roberts +1 more
TL;DR: In this paper, an alternative method for obtaining true Vickers hardness values for the coating is described, using changes in shape of Knoop micro-indentations to characterize the elastic recovery effects, together with use of a composite model fo...
Guided ultrasonic wave for monitoring stress levels in pipelines
Jabid Quiroga,Rodolfo Villamizar Mejía,Luis Eduardo Mujica Delgado,John Quiroga,Magda Ruiz Ordóñez +4 more
TL;DR: In this article, the pattern variation of the wav e propagation in a pipeline is studied by means of Principal Component Analysis (PCA) and some extensions to indirectly evaluate the tensile stress in pipeline, which can be potentially used in-situ and real time for continuous condition monitoring.
Journal ArticleDOI
Residual stresses in the aluminium alloy 2014A subject to PAG quenching and vibratory stress relief
TL;DR: In this article, a hollow pump body made from aluminium alloy 2014A forgings have been solution heat treated and quenched into either cold water or polyalkylene glycol (PAG) solutions.
DissertationDOI
Nondestructive residual strain measurement using high energy x-ray diffraction
TL;DR: In this article, a nondestructive high energy (60 keV ) x-ray diffraction method to measure the internal strain depth profile in materials was developed using a standard 320 kV p laboratory xray source.
References
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Book
Elements of X-ray diffraction
TL;DR: In this article, the authors present a chemical analysis of X-ray diffraction by Xray Spectrometry and phase-diagram Determination of single crystal structures and phase diagrams.
Book
Encyclopedia of Materials: Science and Technology
K. H. Jürgen Buschow,Robert W. Cahn,Merton C. Flemings,Bernhard Ilschner,Edward J. Kramer,Subhash Mahajan +5 more
TL;DR: In this article, the fundamental core theory of functional properties and properties of materials are discussed. But the authors focus on the physical properties of thin films and artificial multilayers, rather than the structural properties of the materials themselves.
Journal ArticleDOI
Residual stress. Part 2 – Nature and origins
TL;DR: In this paper, the authors examine the nature and origins of residual stresses across a range of scales, from the long range residual stress fields in engineering components and welded structures, through the interphase stresses present in composites and coatings, to the microscale interactions of phase transformations with local stresses.
Book
Handbook of Measurement of Residual Stresses
TL;DR: In this paper, the authors describe a sequence of residual stress measurements made to determine a Handbook on Stiffness & Damping in Mechanical Design, which can be used to compare different methods of measuring residual stress.