Effect of shot peening on corrosion resistance of additive manufactured 17-4PH steel

Świetlicki, Aleksander; Walczak, Mariusz; Szala, Mirosław

doi:10.2478/msp-2022-0038

Cited by 8 publications

(8 citation statements)

References 47 publications

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“…In accordance with ASTM A564 and EN10088-1 standards, the tested 17-4PH steel alloy met the composition specifications quoted in the previously mentioned standards. In a previous study [ 22 ], the powder composition was similar to that obtained in the final element and similar to that obtained in this study. However, the obtained chemical composition results differed slightly when the C and Cu content was compared to the study on GP1 powder reuse [ 35 ].…”

Section: Resultssupporting

confidence: 89%

“…Reagent selection was based on ASTM E407-07(2015) [ 34 ]. Metallographic specimens were examined using a Nikon (Irvine, CA, USA) MA200 optical microscope at ×200 magnification [ 22 ]. The surface texture morphology after shot peening tests was evaluated using a Phenom ProX scanning electron microscope (Phenom World, Waltham, MA, USA) with EDS at 500× magnification using topographic mode.…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, bearing in mind the above-mentioned areas of application, among others, resistance to abrasive wear in the environment of body fluids seems to be crucial. The corrosion resistance itself has already been studied by the authors of this paper, where the results were reported in several studies [ 22 , 23 ]. At that time, rather promising results were obtained for CrNi, ZrO 2 and glass shot surfaces with regard to corrosion behavior.…”

Section: Introductionmentioning

confidence: 98%

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Shot Peening Effect on Sliding Wear in 0.9% NaCl of Additively Manufactured 17-4PH Steel

Walczak,

Świetlicki,

Szala

et al. 2024

Materials

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The growing demand for modern steels showing corrosion and tribological resistance has led to their increased use in the production of medical devices. This study analyzed the effect of shot peening on wear resistance in 0.9% NaCl solution of 17-4PH steel produced by direct laser metal sintering (DMLS) technology. The study’s novelty relies on revealing the effect of shot peening (SP) surface treatment on the wet sliding wear resistance of 17-4PH steel produced with DMLS. Moreover, in the context of 17-4PH steel application for medical devices, the 0.9% NaCl tribological environment were selected, and SP processes were conducted using steel CrNi shot and ceramic (ZrO2) beads. The up-to-date scientific literature has not identified these gaps in the research. DMLS technology makes it possible to obtain products with complex architectures, but it also faces various challenges, including imperfections in the surface layer of products due to the use of 3D printing technology itself. The chemical and phase composition of the materials obtained, Vickers hardness, surface roughness, and microscopic and SEM imaging were investigated. Tribological tests were carried out using the ball-on-disc method, and the surfaces that showed traces of abrasion to identify wear mechanisms were subjected to SEM analysis. The XRD phase analysis indicates that austenite and martensite were found in the post-production state, while a higher martensitic phase content was found in peened samples due to phase transformations. The surface hardness of the peened samples increased by more than double, and the post-treatment roughness increased by 12.8% after peening CrNi steels and decreased by 7.8% after peening ZrO2 relative to the reference surfaces. Roughness has an identifiable effect on sliding wear resistance. Higher roughness promotes material loss. After the SP process, the coefficient of friction increased by 15.5% and 20.7%, while the wear factor (K) decreased by 25.9% and 32.7% for the samples peened with CrNi steels and ZrO2, respectively. Abrasive and adhesive mechanisms were dominant, featured with slight fatigue. The investigation showed a positive effect of SP on the tribological properties of DMSL 17-4PH.

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Section: Resultssupporting

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Shot Peening Effect on Sliding Wear in 0.9% NaCl of Additively Manufactured 17-4PH Steel

Walczak,

Świetlicki,

Szala

et al. 2024

Materials

Self Cite

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“…The overall trend suggests that the highest and average hardness on the LSMSPed gear surfaces improve with the elevation of the three SP parameters, potentially by reason of the already high hardness of LSMed gears. However, it should be noted that factors such as the environmental temperature of SP treatment and the material of the projectile can also influence sample hardness, as demonstrated by the findings of Umeno et al [43] and Swietlicki Aleksander [44]. The perspective reinforces the idea that the elevation in LSMed gear hardness is a result of various contributing factors.…”

Section: Microhardnessmentioning

confidence: 52%

The effect of shot peening on the contact fatigue performance of C40 steel gears after laser surface melting

Lv,

Cui,

Sun

et al. 2024

Surf. Topogr.: Metrol. Prop.

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In this paper, shot peening (SP) was employed as a post-processing technique for the laser surface melted (LSMed) gear. The aim was to improve the contact fatigue performance of laser surface melting+shot peened (LSMSPed) gears. The microstructure, surface roughness, residual stress, microhardness of C40 steel gears before and after SP treatment were characterized using scanning electron microscopy, X-ray diffraction stress analyzer, contour measuring instrument, and hardness tester. Fatigue test of gear was carried out with a Forschungsstelle für Zahnräder und Getriebebau (FZG) testing machine. Following the laser surface melting (LSM) treatment, a molten layer was observed on the gear teeth surface. The experimental results indicated that SP induced a hardened layer with a certain thickness and plastic deformation on the surface of LSMed gears. Importantly, as the SP parameters increased, there's a corresponding reduction in both the average grain diameter and the maximum grain diameter. The reduction was most pronounced when the shot diameter reached its maximum value. It's worth noting that once the optimal threshold for SP parameters is surpassed, the residual compressive stress and microhardness on the LSMSPed gear surface do not exhibit a continuous growth trend. Furthermore, the rise in SP parameters resulted in a gradual increase in the surface roughness of LSMSPed gears, albeit to varying degrees. In light of the combined effects of grain refinement, residual compressive stress, microhardness, and surface roughness, the contact fatigue performance of LSMSPed gears improved with increasing SP parameters. Notably, when comparing the contact fatigue life of LSMed gears with that of LSMSPed gears, we observed a substantial enhancement. However, it's essential to highlight that when the shot diameter reaches its maximum value, the contact fatigue life of the LSMSPed gear, somewhat unexpectedly, decreased.

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“…10. Swietlickinet et al [17] argued that small grains promote more corrosion nucleation sites, which eventually lead to corrosion.…”

Section: Corrosion Behaviormentioning

confidence: 99%

The influence of hatch spacing on the metallurgical characteristics of 17-4 PH stainless steel processed by DED

Mathoho,

Mathoho

2023

Preprint

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The quality and performance of additively manufactured part is linked to the process parameters such as laser power, scanning speed, powder feed rate, and layer thickness. However, hatch spacing is one of the process parameters that affect the quality and performance of the part, but its effect has not been fully investigated. Therefore, this study seeks to investigate the effect of hatch spacing on the metallurgical characteristics, including microstructural evolution, microhardness, and corrosion behaviour of 17 − 4 PH stainless produced through DED. This study deduced that varying the % overlap had an impact on the proportion of delta ferrite and the grain size. Furthermore, increasing the % overlap was found to cause a reduction in hardness. Meanwhile, it was found that traditionally manufactured 17 − 4 PH is less susceptible to corrosion than additively manufactured 17 − 4 PH.

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Effect of shot peening on corrosion resistance of additive manufactured 17-4PH steel

Cited by 8 publications

References 47 publications

Shot Peening Effect on Sliding Wear in 0.9% NaCl of Additively Manufactured 17-4PH Steel

Shot Peening Effect on Sliding Wear in 0.9% NaCl of Additively Manufactured 17-4PH Steel

The effect of shot peening on the contact fatigue performance of C40 steel gears after laser surface melting

The influence of hatch spacing on the metallurgical characteristics of 17-4 PH stainless steel processed by DED

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