Journal ArticleDOI
Laser shock peening effect on the dislocation transitions and grain refinement of Al–Mg–Si alloy
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TLDR
In this paper, the effect of laser shock peening without coating parameters on the microstructural evolution, and dislocation configurations induced by ultra-high plastic strains and strain rates was investigated.About:
This article is published in Materials Characterization.The article was published on 2014-11-01. It has received 130 citations till now. The article focuses on the topics: Peening & Shot peening.read more
Citations
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Journal ArticleDOI
Microstructural characterisation of metallic shot peened and laser shock peened Ti–6Al–4V
TL;DR: In this article, a detailed analysis has been conducted of Ti-6Al-4V processed by metallic shot peening and laser shock peening, and the results highlight the very different dislocation structures in surfaces processed by these two techniques.
Journal ArticleDOI
3D Laser Shock Peening – A new method for the 3D control of residual stresses in Selective Laser Melting
Nikola Kalentics,Eric Boillat,Patrice Peyre,Cyril Gorny,Christoph Kenel,Christian Leinenbach,Jamasp Jhabvala,Roland E. Logé +7 more
TL;DR: In this article, a hybrid additive manufacturing process based on the integration of Laser Shock Peening (LSP) with selective laser melting (SLM) is described. But the authors do not consider the effect of residual stresses in the as-built (AB) state of SLM parts in the subsurface region.
Journal ArticleDOI
Tailoring residual stress profile of Selective Laser Melted parts by Laser Shock Peening
Nikola Kalentics,Eric Boillat,Patrice Peyre,Snežana Ćirić-Kostić,Nebojša Bogojević,Roland E. Logé +5 more
TL;DR: In this paper, the authors describe a new approach in controlling and tailoring residual stress profile of parts made by Selective Laser Melting (SLM) SLM parts are well known for the high tensile stresses in the as-built state in the surface or subsurface region These stresses have a detrimental effect on the mechanical properties and especially on the fatigue life.
Journal ArticleDOI
Random-type scanning patterns in laser shock peening without absorbing coating in 2024-T351 Al alloy: A solution to reduce residual stress anisotropy
C. Correa,D. Peral,Juan Antonio Porro,M. Díaz,L. Ruiz de Lara,Ángel García-Beltrán,José Luis Ocaña +6 more
TL;DR: In this paper, the influence of the scanning pattern directionality on the residual stress tensor has been analyzed for the first time and with the aid of the numerical model developed by the authors, the authors propose the application of random-type scanning patterns instead of zigzag-type in order to reduce the mentioned residual stress anisotropy.
Journal ArticleDOI
Improvement of corrosion resistance of AA2024-T3 using femtosecond laser peening without protective and confining medium
TL;DR: In this paper, the effect of femtosecond laser shock peening (fLSP) without a sacrificial overlay under atmospheric conditions (no confinement) on the corrosion behavior of AA2024-T3 was reported.
References
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Book
Recrystallization and Related Annealing Phenomena
F.J. Humphreys,M. Hatherly +1 more
TL;DR: In this paper, the authors discuss the extent to which we are able to formulate quantitative, physically-based models which can be applied to metal-forming processes, and the subjects treated in this book are all active research areas and form a major part of at least four regular international conference series.
Journal ArticleDOI
Extreme grain refinement by severe plastic deformation: A wealth of challenging science
Yuri Estrin,Alexei Vinogradov +1 more
TL;DR: A brief overview of the available SPD technologies is given in this paper, along with a summary of unusual mechanical, physical and other properties achievable by SPD processing, as well as the challenges this research is facing, some of them generic and some specific to the nanoSPD area.
Journal ArticleDOI
The precipitation sequence in Al–Mg–Si alloys
TL;DR: In this article, the fine-scale precipitation that occurs during age hardening of Al alloy 6061 has been studied using differential scanning calorimetry (DSC), APFIM and transmission electron microscopy (TEM).
Journal ArticleDOI
Pitting corrosion of aluminum
TL;DR: In this paper, a review describes the experiments performed during the last few decades which enhance knowledge of the pitting of aluminum, specifically, metastable and stable pits, pit chemistry and the effect of intermetallics on pitting.
Journal ArticleDOI
Friction stir welding of aluminium alloys
TL;DR: A comprehensive body of knowledge has built up with respect to the friction stir welding (FSW) of aluminium alloys since the technique was invented in 1991 is reviewed in this article, including thermal history and metal flow, before discussing how process parameters affect the weld microstructure and the likelihood of entraining defects.