Effect of Laser Shock Peening on fatigue properties of additively manufactured AlSi10Mg

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00638045" target="_blank" >RIV/68378271:_____/25:00638045 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/25:00384373
Result on the web
<a href="https://doi.org/10.1016/j.ijfatigue.2025.109149" target="_blank" >https://doi.org/10.1016/j.ijfatigue.2025.109149</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijfatigue.2025.109149" target="_blank" >10.1016/j.ijfatigue.2025.109149</a>

Result language
angličtina
Original language name
Effect of Laser Shock Peening on fatigue properties of additively manufactured AlSi10Mg
Original language description
This study investigates the fatigue strength characteristics of AlSi10Mg specimens produced by Laser Powder Bed Fusion (L-PBF) and heat-treated at 200 ◦C for 2 h. A particular focus of this paper is on evaluating the potential of Laser Shock Peening (LSP) to enhance their fatigue performance. The hourglass specimens were printed in a single batch, resulting in six distinct groups for testing. While three series remained in the as-built state, the other three underwent machining to achieve specific dimensions and surface roughness. Additionally, two variants of the Laser Shock Peening process were applied to two groups of as-built specimens and to two groups of machined specimens. Fatigue testing was performed using a resonant pulsator at the load ratio of R = 0.1. The surface roughness and depth profiles of residual stress were analyzed. A specific focus was set to identify the pore closure due to applied LSP showing that the chosen LSP configurations significantly modify the porosity of additively manufactured AlSi10Mg samples. The results show that the more energy-intensive LSP process improves the fatigue behavior to a point where the difference in fatigue life between machined and as-built specimens becomes minor.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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