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Stress relaxation
About: Stress relaxation is a research topic. Over the lifetime, 12959 publications have been published within this topic receiving 270815 citations.
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15 May 1998-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, shot peened hollow carbon steel SAE 1045 specimens were cyclically deformed under stress control and a special cross-sectioning technique was applied to prepare near surface regions for transmission electron microscopy.
Abstract: Cylindrical specimens of the normalized plain carbon steel SAE 1045 were shot peened and cyclically deformed under stress control. A special cross-sectioning technique was applied to prepare near surface regions for transmission electron microscopy. The resulting properties of these regions were characterized by X-ray diffraction and microhardness measurements. The cyclic deformation curves are affected characteristically by dislocation arrangements induced by shot peening. The stability of these dislocation arrangements and the depth profile obtained by residual stress and interference line half-width value measurements depend strongly on the stress amplitude. High stress amplitudes lead to the formation of dislocation cell structures in the shot peened layers, accompanied by the total disappearance of compressive stresses and the decrease of interference line half-width values down to the initial level. Thus, a clear correlation between stress relaxation, cyclic deformation behaviour and microstructural alterations in shot peened regions is revealed. Experiments carried out on shot peened hollow specimens indicate that the cyclic deformation behaviour is not merely a function of dislocation arrangement and density but also of the thickness of strain hardened near surface material in relation to the diameter of the specimen.
73 citations
TL;DR: In this paper, in situ and in real-time quantitative measurements of stress along [1, 1, 0] and [1 1 0] directions during the formation of InAs/InP(0, 0, 1) quantum wires (QWr) and consequent stress relaxation are reported.
73 citations
TL;DR: In this paper, a comprehensive study on the compressive uniaxial mechanical response of the polymer Adiprene-L100, a polyether urethane-based rubber, is presented.
73 citations
TL;DR: In this paper, the authors measured the anelastic stress relaxation as a function of time and temperature for amorphous Fe 40 Ni 40 P 14 B 6, and found that the stress relaxation rate increased with increase in the temperature of the melt, followed by a decrease.
72 citations
TL;DR: In this article, the influence of the solute concentration C on the stress dependence of the creep rates ϵ S in AlMg alloys (0.5-3.3 mol) has been examined at 600 K over the stress range between 2.5 and 85 MPa.
72 citations