Characteristics of surface layers formed on inconel 718 by laser shock peening with and without a protective coating
TLDR
In this article, a recast layer formed in Inconel alloy 718 (IN718) as a result of laser shock peening without an ablative layer was characterized and compared with surface condition of a sample peened with a protective overlay.About:
This article is published in Journal of Materials Processing Technology.The article was published on 2015-11-01 and is currently open access. It has received 102 citations till now. The article focuses on the topics: Laser peening & Peening.read more
Citations
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Journal ArticleDOI
Dynamic recrystallization mechanisms and twining evolution during hot deformation of Inconel 718
TL;DR: In this article, the effects of strain, strain rate and deformation temperature on the subgrain structures, local and cumulative misorientations and twinning phenomena of an IN718 superalloy were investigated.
Journal ArticleDOI
Effect of laser shock peening on residual stress, microstructure and fatigue behavior of ATI 718Plus alloy
TL;DR: In this article, the effects of LSP on the microstructure, residual stress, hardness, strength, and fatigue life of ATI 718 Plus (718Plus) alloy was investigated and the results are reported.
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
The effects of shot peening, laser shock peening and ultrasonic nanocrystal surface modification on the fatigue strength of Inconel 718
TL;DR: In this paper, the effects of different surface severe plastic deformation techniques including severe shot peening, laser shock peening and ultrasonic nanocrystal surface modification have been investigated on the microstructure, mechanical properties and fatigue behavior of nickel-based superalloy Inconel 718.
Journal ArticleDOI
Microstructural evolution and constitutive equations of Inconel 718 alloy under quasi-static and quasi-dynamic conditions
TL;DR: In this paper, the deformation behavior of IN718 superalloy was investigated using the hot compression tests in the temperature range of 950-1100 °C, and strain rates covering the quasistatic to the quasi-dynamic regions (0.001 −10 s−1).
References
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Journal ArticleDOI
Dynamic Deformation Twinning in Shock‐Loaded Iron
J. N. Johnson,R. W. Rohde +1 more
TL;DR: In this paper, an analytical model for dynamic deformation twinning in Ferrovac E iron is proposed. But the model is based on the growth of twin platelets and the volume fraction of twins is assumed to increase monotonically from zero to 4%.
Journal ArticleDOI
Laser shock processing of materials, physical processes involved and examples of applications
TL;DR: In this paper, the physical processes involved in the analytical modeling of the generation pressure mechanism in a confined plasma regime are reviewed together with current research directions aimed at improving the laser coupling such as using short rise time pulses instead of Gaussian ones or shorter wavelengths than the traditional λ = 1.06 μm.
Journal ArticleDOI
Pulsed laser induced deformation in an Fe-3 Wt Pct Si alloy
TL;DR: In this paper, the authors investigated the plastic deformation produced by laser induced stress waves on an Fe-3 wt pct Si alloy and found that the magnitude of the deformation depended on the laser beam power density and the type of surface overlay.
Journal ArticleDOI
Laser shock hardening of weld zones in aluminum alloys
TL;DR: In this article, the feasibility of using a high energy, pulsed laser beam to shock-harden weld zones in 5086-H32 and 6061-T6 aluminum sheet was investigated.
Book ChapterDOI
Laser generation of stress waves in metal
Jean-Eric Masse,Gerard Barreau +1 more
TL;DR: In this article, the effects of laser-induced stress waves on the residual stresses of a standard steel were investigated and it was shown that the surface residual stress induced is approximately 0.6 times the compressive yield strength of the material for a plastically affected depth of one millimeter.