Journal ArticleDOI
The physics of fatigue crack initiation
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TLDR
In this paper, the authors focus on experimental observations of strain localization and the theory and numerical analysis of both slip irreversibilities and low energy configuration defect structures, which are the early signs of damage during cyclic loading.About:
This article is published in International Journal of Fatigue.The article was published on 2013-12-01. It has received 495 citations till now. The article focuses on the topics: Crack closure & Slip (materials science).read more
Citations
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Mechanical behavior of high-entropy alloys
TL;DR: In this article, the authors present a comprehensive, critical review of the mechanical behavior of high-entropy alloys and some closely related topics, including thermodynamics and kinetics.
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Fatigue behaviors of AISI 316L stainless steel with a gradient nanostructured surface layer
TL;DR: In this article, a gradient nanostructured (GNS) surface layer was formed on AISI 316L stainless steel and the mean grain size is ∼30nm in the topmost surface layer and increases with depth.
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Defects in additive manufactured metals and their effect on fatigue performance: A state-of-the-art review
TL;DR: In this paper, the authors review the literature on the influential microstructural attributes on fatigue performance of additive manufacturing (AM) parts with a focus on generated defects, including defect-based, microstructure-sensitive, and multiscale models.
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Microtubules self-repair in response to mechanical stress.
Laura Schaedel,Karin John,Jérémie Gaillard,Maxence V. Nachury,Laurent Blanchoin,Manuel Théry,Manuel Théry +6 more
TL;DR: These findings demonstrate that microtubules are ductile materials with self-healing properties, that their dynamics does not exclusively occur at their ends, and that their lattice plasticity enables the microtubule's adaptation to mechanical stresses.
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Failure of metals II: Fatigue
TL;DR: In this article, a multistage grain scale approach to microstructure-sensitive fatigue crack formation and growth is presented which uses Fatigue Indicator Parameters (FIPs) to correlate these processes.
References
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Journal ArticleDOI
Numerical simulation of persistent slip band formation
TL;DR: In this paper, a roughly homogeneous distribution is converted into a periodic roll structure of many hundreds of wavelengths that crosses the crystal through its whole cross section, and the dislocation distribution undergoes complex microscopic changes.
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Surface intergranular cracking in large strain fatigue
TL;DR: In this paper, the formation of surface intergranular cracks was investigated with a coarse-grained polycrystal of nickel, deformed in low-cycle fatigue at 573 K. The evolution of the cracks was followed as a function of fatigue life fractions, and the factors favoring their formation were identified.
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Persistent slip bands in cyclically deformed nickel polycrystals
TL;DR: In this article, the influence of the plastic strain amplitude and the crystallographic grain orientation on the occurrence of the ladder-like dislocation substructure characteristic of persistent slip bands (PSBs) was studied by scanning electron microscopy (SEM) on individual grains of cycled nickel polycrystals.
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Orientation dependence of the cyclic deformation behavior and the role of grain boundaries in fatigue damage in copper crystals
TL;DR: In this article, a modified intergranular fatigue cracking mechanism was suggested, and the significant role of the grain boundary triple lines and triple junctions (TJs) in fatigue damage was revealed.
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Effects of deformation behavior on fatigue fracture surface morphology in a nickel-base superalloy
Amit Shyam,W.W. Milligan +1 more
TL;DR: In this paper, a model is developed that quantitatively predicts fracture surface roughness and roughness-induced crack closure stress intensity values from measurements of slip line spacing in a compression specimen.