Corrosion resistance of additively manufactured 316L stainless steel in chloride−thiosulfate environment

Al-Mamun, Nahid Sultan; Haider, Waseem; Shabib, Ishraq

doi:10.1016/j.electacta.2020.137039

Cited by 19 publications

(13 citation statements)

References 76 publications

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“…Literature data exist concerning the structure and electrical properties of passive films formed on AM 316 SS [6][7][8]11,12], but, to our knowledge, nothing has been done concerning the AM 17-4PH MSS. A recent work of Revilla et al [11] proposed an electrochemical impedance spectroscopy (EIS) study of the native oxide layer of AM 316 L SS by comparison to the wrought counterpart.…”

Section: Qualitative Analysis Of Eis Measurementsmentioning

confidence: 99%

“…Additively manufactured (AM) steels have been largely studied, and abundant literature has been focused on the mi crostructures of AM steel components, and only a few ve1y recent ref erences have been given here [2][3][4]. However, ve1y few papers concemed their corrosion properties, and the largest part of these con cemed 316 L stainless steel (SS) [5][6][7][8][9][10][11][12]. The authors compared the corrosion prope1ties of AM 316 SS to those of the wrought counterpa1t, and showed that substantial differences were observed between the two materials due to specific microstructures generated by AM processes.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical impedance spectroscopy study of the passive film for laser-beam-melted 17-4PH stainless steel

et al. 2021

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Section: Qualitative Analysis Of Eis Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemical impedance spectroscopy study of the passive film for laser-beam-melted 17-4PH stainless steel

et al. 2021

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“…[1][2][3] 316L stainless steel (SS) is an appealing material for AM due to its high corrosion resistance and strength. [4][5][6] However, the manufacturing capabilities for AM 316L SS is currently outpacing postprocessing techniques, as the parts suffer from high surface roughness resulting from the printing process. 2,[7][8][9][10][11][12] It is typical for these samples to have arithmetical mean height distributions (S a ) in the order of 5-15 lm, which is problematic since many surface finishing techniques, such as coatings, and production applications require a surface roughness around 1 lm or less.…”

Section: State Of the Field-addressing Roughness On Additive Surfacesmentioning

confidence: 99%

Enhancing Surface Finish of Additively Manufactured 316L Stainless Steel with Pulse/Pulse Reverse Electropolishing

Gorey¹,

Stull²,

Hackenberg³

et al. 2022

JOM

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To improve the reliable integration of additively manufactured (AM) metal components, there is an urgent need for surface finishing methods capable of processing rough, ''as-printed'' surfaces. We present a new and scalable electropolishing (EP) technique for use on AM 316L stainless steel (SS) that is capable of achieving a surface roughness equivalent to a machined finish, with arithmetic mean heights (S a ) as low as 1.0 lm. This technique utilizes the sequential application of a new, NaCl/H 2 O pulse/pulse reverse (P/PR) EP step along with a conventional DC (direct current) EP step, where P/PR expands the capability of EP by removing roughness features > 1 lm, which has been previously unattainable with DC EP alone without substantial material removal. This is achieved by independently varying pulse parameters, such as pulse width and height, allowing more control over electrodynamic processes at the part-electrolyte interface. Additionally, P/PR EP resulted in higher smoothing efficiency, where a higher degree of smoothing was achieved with less material removal when compared with conventional DC EP alone. This minimizes unwanted change in geometry from excessive metal dissolution.

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“…The absence of Mns inclusion leads to fewer and smaller pit formations than wrought alloy as shown in Figure 18. Another study reported that AM part performs well in a corrosion environment, compared to wrought alloy, due to a layer-wise refined microstructure, the absence of MnS inclusions, and more robust passivity behavior [61,62]. Nie et al [62] also reported the analysis of film stability in the AM part in the environment of a 3.5 wt% NaCl solution.…”

Section: Corrosion Behavior Of Ss316l In the Human Bodymentioning

confidence: 99%

A Critical Review on Effect of Process Parameters on Mechanical and Microstructural Properties of Powder-Bed Fusion Additive Manufacturing of SS316L

et al. 2021

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Additive manufacturing (AM) is one of the recently studied research areas, due to its ability to eliminate different subtractive manufacturing limitations, such as difficultly in fabricating complex parts, material wastage, and numbers of sequential operations. Laser-powder bed fusion (L-PBF) AM for SS316L is known for complex part production due to layer-by-layer deposition and is extensively used in the aerospace, automobile, and medical sectors. The process parameter selection is crucial for deciding the overall quality of the SS316L build component with L-PBF AM. This review critically elaborates the effect of various input parameters, i.e., laser power, scanning speed, hatch spacing, and layer thickness, on various mechanical properties of AM SS316L, such as tensile strength, hardness, and the effect of porosity, along with the microstructure evolution. The effect of other AM parameters, such as the build orientation, pre-heating temperature, and particle size, on the build properties is also discussed. The scope of this review also concerns the challenges in practical applications of AM SS316L. Hence, the residual stress formation, their influence on the mechanical properties and corrosion behavior of the AM build part for bio implant application is also considered. This review involves a detailed comparison of properties achievable with different AM techniques and various post-processing techniques, such as heat treatment and grain refinement effects on properties. This review would help in selecting suitable process parameters for various human body implants and many different applications. This study would also help to better understand the effect of each process parameter of PBF-AM on the SS316L build part quality.

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Corrosion resistance of additively manufactured 316L stainless steel in chloride−thiosulfate environment

Cited by 19 publications

References 76 publications

Electrochemical impedance spectroscopy study of the passive film for laser-beam-melted 17-4PH stainless steel

Electrochemical impedance spectroscopy study of the passive film for laser-beam-melted 17-4PH stainless steel

Enhancing Surface Finish of Additively Manufactured 316L Stainless Steel with Pulse/Pulse Reverse Electropolishing

A Critical Review on Effect of Process Parameters on Mechanical and Microstructural Properties of Powder-Bed Fusion Additive Manufacturing of SS316L

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