Investigation of the Structural and Tribological Properties of 316L Stainless Steel Manufactured Using Variable Production Parameters by Selective Laser Melting

Gençoğlu, Ufuk; Kaya, Gürkan; Ergüder, Tevfik Oğuzhan; Hacısalihoğlu, İlyas; Yıldız, Fatih

doi:10.1007/s11665-021-06507-4

Cited by 13 publications

(15 citation statements)

References 23 publications

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Section: Introductionmentioning

confidence: 99%

“…Among the limited literature on the wear properties of LPBF processed 316L SS, some have focused on the effect of process parameters on wear behaviors [25][26][27][28][29]. The most in uential process parameters on the wear properties of LPBF samples were reported to be the laser energy density, hatching distance, building direction, and scanning strategy [25][26][27][28][29][30]. In addition, the literature also discussed the wear behavior of LPBF 316L SS focusing on other areas of interests, such as wear anisotropy, wear under lubricated condition, and wear under high temperature [15,[31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Unconventional wear characteristics due to perfect plasticity in laser powder bed fusion processed 316 L stainless steel

Ara,

Tangpong,

Azarmi

2023

Int J Adv Manuf Technol

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Laser powder bed fusion (LPBF) is a metal additive manufacturing technology that is capable of printing metals and alloys with high quality. This study investigates wear characteristics of LPBF processed 316L stainless steel and its correlation to the hardness and microstructure of the materials. The wear properties of LPBF specimen and hot rolled 316L stainless steel were compared. From the analysis of wear characteristics of the samples, it was observed that the results were not consistent with the prediction of Archard's empirical equation. The LBPF processed samples with higher hardness exhibited lower wear resistance compared to the conventionally processed (hot rolled) samples. This study aimed at addressing such phenomenon by understanding the plasticity in those samples. Unconventional plastic deformation in LPBF 316L samples with negligible work-hardening was observed which was believed to be the main reason for their lower wear resistance compared to conventionally processed samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unconventional wear characteristics due to perfect plasticity in laser powder bed fusion processed 316 L stainless steel

Ara,

Tangpong,

Azarmi

2023

Int J Adv Manuf Technol

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“…With increasing scanning speed values at the same power value, the melting pool form changes from keyhole to semi spherical form. Previous studies have reported the emergence of porous structures during the advanced stages of fabrication within keyhole mode melting pools [40]. Therefore, the parameters that yield the keyhole shaped melting pool form were not further examined in subsequent processes.…”

Section: Surface and Melting Pool Morphology Of Single-tracksmentioning

confidence: 99%

Effects of Selective Laser Melting Process Parameters on Structural, Mechanical, Tribological and Corrosion Properties of CoCrFeMnNi High Entropy Alloy

Bulut,

Yıldız,

Varol

et al. 2024

Met. Mater. Int.

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The structural, tribological, mechanical, corrosion, and other properties of materials produced by laser-based powder bed fusion additive manufacturing methods are significantly affected by production parameters and strategies. Therefore, understanding and controlling the effects of the parameters used in the manufacturing process on the material properties is extremely important for determining optimum production conditions and for saving time and materials. This study aimed to determine the optimal laser parameter values for CoCrFeMnNi high-entropy alloy powders using the selective laser melting (SLM) method. The layer thickness was kept constant during experimentation. 5 different laser powers and 10 varying laser scanning speeds were tested, with hatch spacing from 30 to 90%. After determining the optimal laser parameters for SLM, prismatic samples were fabricated in different build orientations (0°, 45°, and 90°), and subsequently, their structural, mechanical, tribological, and corrosion properties were compared. Melt pool morphology could not be obtained at 20—40 and 60W laser powers and at all laser scanning speeds used at these laser powers. At 100 W laser power, 600 mm/s laser scanning speed, and 70% hatch spacing parameters, an ultimate tensile stress of 550 MPa and elongation of 48% were obtained. Among the samples produced in different build orientations, the sample produced with a 0° build orientation exhibited the highest relative density (99.94%), the highest microhardness (201.2 HV0.1), the lowest friction coefficient (0.7025), and the lowest wear and corrosion rates (0.7875 mpy). Additionally, SLM parameters were evaluated to have a significant impact on the performance of all properties of the samples. Graphical Abstract

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“…Meier et al [17,18,21,29] studied 316L stainless steel with different process parameters. To systematically study the influence of different process parameters on the forming of thin-walled ring parts, combined with the existing research results of many scholars, the following simulation scheme is designed: The scheme is shown in Table 2, and the influence of process parameters on temperature field and stress field is observed by controlling a single variable.…”

Section: Simulation Schemementioning

confidence: 99%

“…Bevan et al [20] researched the mechanical performance of AM austenitic stainless steel 316L under different strain rates. Gençoğlu et al [21] studied the effects of SLM process parameters on the microstructure, mechanical properties, and wear properties of 316L stainless steel. As a result, it was determined that the manufacturing parameters/strategies used in the SLM method have a significant effect on the mechanical properties and wear performance of 316L stainless steel.…”

Section: Introductionmentioning

confidence: 99%

Laser Additive Manufacturing of 316L Stainless Steel Thin-wall Ring Parts

Zhao¹,

Tian²,

Liu³

et al. 2023

Fluid Dynamics &Amp; Materials Processing

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The process parameters of laser additive manufacturing have an important influence on the forming quality of the produced items or parts. In the present work, a finite element model for simulating transient heat transfer in such processes has been implemented using the ANSYS software, and the temperature and stress distributions related to 316L stainless steel thin-walled ring parts have been simulated and analyzed. The effect of the laser power, scanning speed, and scanning mode on temperature distribution, molten pool structure, deformation, and stress field has been studied. The simulation results show that the peak temperature, weld pool size, deformation, and residual stress increase with an increase in laser power and a decrease in the scanning speed. The scanning mode has no obvious effect on temperature distribution, deformation, and residual stress. In addition, a forming experiment was carried out. The experimental results show that the samples prepared by laser power P = 800 W, V = 6 mm/s, and the normal scanning method display good quality, whereas the samples prepared under other parameters have obvious defects. The experimental findings are consistent with the simulation results.

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Investigation of the Structural and Tribological Properties of 316L Stainless Steel Manufactured Using Variable Production Parameters by Selective Laser Melting

Cited by 13 publications

References 23 publications

Unconventional wear characteristics due to perfect plasticity in laser powder bed fusion processed 316 L stainless steel

Unconventional wear characteristics due to perfect plasticity in laser powder bed fusion processed 316 L stainless steel

Effects of Selective Laser Melting Process Parameters on Structural, Mechanical, Tribological and Corrosion Properties of CoCrFeMnNi High Entropy Alloy

Laser Additive Manufacturing of 316L Stainless Steel Thin-wall Ring Parts

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