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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68378271:_____/25:00638962 RIV/49777513:23640/25:43976536

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Manufacturing Processes

ISSN

1526-6125

e-ISSN

2212-4616

Svazek periodika

149

Číslo periodika v rámci svazku

September

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

818-827

Kód UT WoS článku

001508490600001

EID výsledku v databázi Scopus

2-s2.0-105007473814