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
More filters
Journal ArticleDOI
Measurement of residual stresses in austenitic stainless steel weld joints using ultrasonic technique
TL;DR: In this paper, a non-destructive ultrasonic technique for measuring surface/subsurface residual stresses in 7 mm thick AISI type 316LN stainless steel weld joints was developed.
Journal ArticleDOI
Experimental and numerical investigation of material heterogeneity in shot peened aluminium alloy AA2024-T351
A. Gariépy,A. Gariépy,Florent Bridier,Majid Hoseini,Philippe Bocher,C. Perron,Martin Lévesque +6 more
TL;DR: In this paper, the authors investigated the heterogeneities present in peened aluminium alloy AA2024-T351 after repeated random impacts in terms of residual stresses, work-hardening, surface roughness, and damage while also considering the initial nonuniformities in the material.
Journal ArticleDOI
Kinetics of the formation of metal binder gradient in WC–Co by carbon diffusion induced liquid migration
TL;DR: In this article, a series of carburizing experiments were conducted to examine the effects of key process parameters including temperature, composition of the atmosphere, and time on the overall kinetics of the process.
Proceedings ArticleDOI
Transformation Temperatures and Welding Residual Stresses in Ferritic Steels
John Francis,Howard J. Stone,Saurabh Kundu,Ronald B. Rogge,H. K. D. H. Bhadeshia,Philip J. Withers,Leif Karlsson +6 more
TL;DR: In this paper, the extent to which the martensite-start temperature of the weld filler metal can be adjusted to mitigate residual stress distributions in ferritic steel welds has been investigated.
Journal ArticleDOI
Influence of Friction Stir Processing on Weld Temperature Distribution and Mechanical Properties of TIG-Welded Joint of AA6061 and AA7075
Husain Mehdi,Rajiv S. Mishra +1 more
TL;DR: In this article, the effect of friction stir processing on TIG-welded joints with filler ER 5356 to improve the mechanical properties of TIG welder was investigated.
References
More filters
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.