Journal ArticleDOI
Stress relaxation during high temperature high strain fatigue
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In this paper, a cyclic mechanical equation of state at high temperature is discussed from some experimental results on random and periodic cycling of two high temperature steels, where stress relaxation as recovery opposing strain hardening the shape of the high temperature hysteresis loop is described.About:
This article is published in Materials Science and Engineering.The article was published on 1976-01-01. It has received 4 citations till now. The article focuses on the topics: Stress relaxation & Stress intensity factor.read more
Citations
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A mathematical representation of the multiaxial Bauschinger effect
C. O. Frederick,Peter Armstrong +1 more
TL;DR: A mathematical representation of the multiaxial Bauschinger effect of materials at high temperatures was presented in this paper. But the model was not considered in this paper, nor in the paper.
Journal ArticleDOI
Life time calculations for LCF loading combined with tensional hold periods. Application to Zircaloy-4 and AISI 304
TL;DR: In this paper, the life time in high amplitude strain cycling with tensional hold periods is analyzed assuming that creep failure damage is life determining, and the life fraction rule (LFR) is used to calculate the life times consumpted during the dwell period in strain controlled tests as well as during tensional holds time stress cycles.
Journal ArticleDOI
Direct and indirect strain measurement during low cycle fatigue of metals at elevated temperature
TL;DR: In this article, the authors mounted direct and indirect extensometers on the specimen and grip assembly of the testing machine, and made direct comparisons on the output strain signals during LCF tests on alloys 316, Nimonic 90 and IN718 at temperatures in the range 600 − 900°C.
Journal ArticleDOI
Cyclic stress relaxation in steel 0Khl6N15M3B under ordinary and reactor test conditions
TL;DR: The radiation-induced increase of the degree of relaxation does not depend on the radiation flux in the region of its variation, and it is probably determined by the parameters of the neutron flux as discussed by the authors.
References
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Journal ArticleDOI
The Role of Internal Stress in the High-Temperature Deformation of Copper
D.J. Lloyd,J.D. Embury +1 more
TL;DR: In this article, the internal stress developed during creep deformation was measured by a modified stress-relaxation technique, and the magnitude of internal stress is related to the scale and nature of the dislocation substructure.
Journal ArticleDOI
High strain fatigue of 20Cr/25Ni/Nb steel at 1025 K Part I: Shape changes
TL;DR: In this paper, the authors show that repeated relaxation (hold times) leads to transverse strain ratcheting, but in the opposite direction to that predicted, sometimes altering the region of crack initiation.
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