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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Journal ArticleDOI
Dependence of Magnetic Permeability on Residual Stresses in Welded Steels
TL;DR: In this article, the authors investigated the potential utilization of the magnetic method in evaluating residual stresses, the magnetic calibration curves of various ferromagnetic steels' grade were examined, and the normalization of these curves revealed the existence of a unique curve, which suggested a universal relationship between the intrinsic magnetic properties and the internal elastic mechanical characteristics of steels.
Journal ArticleDOI
Substrate bias effects on mechanical properties and high temperature oxidation performance of sputtered TiN-coated Zr-4
TL;DR: In this paper, the influence of substrate bias on mechanical properties and high temperature oxidation of sputtered TiN coating which is prepared on the surface of Zr-4 alloy was investigated.
Journal ArticleDOI
Graphics processing unit accelerated phase field dislocation dynamics: Application to bi-metallic interfaces
TL;DR: The novel ACCPFDD-CUFFT implementation is verified using the analytical solutions for the stress field around an infinite edge dislocation and subsequently applied to simulate the interaction and motion of dislocations through a bi-phase copper-nickel (Cu–Ni) interface.
Journal ArticleDOI
Phase-shifted reflective coherent gradient sensor for measuring Young’s modulus and Poisson’s ratio of polished alloys
Kang Ma,Huimin Xie,Bozhao Fan +2 more
TL;DR: In this article, a phase-shifted reflective coherent gradient sensing (CGS) method was used to measure Young's modulus and Poisson's ratio of Ni-Cr Alloy.
Journal ArticleDOI
Predicting part deformation based on deformation force data using Physics-informed Latent Variable Model
TL;DR: In this paper, a method for predicting part machining deformation based on deformation force using the proposed physics-informed Latent Variable Model involved physics knowledge is presented, which can be readily extended to the prediction problems involved with difficult-to-measure physical quantities.
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.