Effect of Laser Shock Peening on the Microstructure of GX4CrNi13-4 Martensitic Stainless Steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F25%3AN0000039" target="_blank" >RIV/26722445:_____/25:N0000039 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/25:00638962 RIV/49777513:23640/25:43976536
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1526612525006619" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1526612525006619</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmapro.2025.06.002" target="_blank" >10.1016/j.jmapro.2025.06.002</a>

Result language
angličtina
Original language name
Effect of Laser Shock Peening on the Microstructure of GX4CrNi13-4 Martensitic Stainless Steel
Original language description
This study investigates the effect of laser shock peening (LSP) on the microstructure and properties of GX4CrNi13–4 martensitic stainless steel. Three different conditions of surface preparation were examined in this study. First, a control group was left with a ground surface. The two remaining groups were treated with LSP. In one case, a single pass of LSP was applied and in the other case, a double pass of LSP was concerned. The samples were subsequently subjected to corrosion-fatigue testing in a water solution of 0.5 g/l NaCl, metallographic analysis, X-ray diffraction, and microhardness measurements. Experimental results of the corrosion-fatigue test showed that the LSP-treated samples exhibited fatigue cracking at higher force amplitude. Roughness measurements showed that the surface after LSP was rougher compared to the initial ground surface but with a lower proportion of grooves. Greater plastic surface deformation resulted in an increase in microhardness in the near-surface region, which was accompanied by an increase in the calculated density of geometrically necessary dislocations, a decrease in the proportion of retained austenite and coarsening of the martensite phase crystallite.
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
20501 - Materials engineering

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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