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Two-Steps Electrochemical Polishing of Laser Powder Bed Fusion 316L Stainless Steel

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Two-Steps Electrochemical Polishing of Laser Powder Bed Fusion 316L Stainless Steel. / Zhu, Haitao; Rennie, Allan; Li, Ruifeng et al.
In: Surfaces and Interfaces, Vol. 35, 102442, 31.12.2022.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Zhu, H, Rennie, A, Li, R & Tian, Y 2022, 'Two-Steps Electrochemical Polishing of Laser Powder Bed Fusion 316L Stainless Steel', Surfaces and Interfaces, vol. 35, 102442. https://doi.org/10.1016/j.surfin.2022.102442

APA

Zhu, H., Rennie, A., Li, R., & Tian, Y. (2022). Two-Steps Electrochemical Polishing of Laser Powder Bed Fusion 316L Stainless Steel. Surfaces and Interfaces, 35, Article 102442. https://doi.org/10.1016/j.surfin.2022.102442

Vancouver

Zhu H, Rennie A, Li R, Tian Y. Two-Steps Electrochemical Polishing of Laser Powder Bed Fusion 316L Stainless Steel. Surfaces and Interfaces. 2022 Dec 31;35:102442. Epub 2022 Nov 8. doi: 10.1016/j.surfin.2022.102442

Author

Zhu, Haitao ; Rennie, Allan ; Li, Ruifeng et al. / Two-Steps Electrochemical Polishing of Laser Powder Bed Fusion 316L Stainless Steel. In: Surfaces and Interfaces. 2022 ; Vol. 35.

Bibtex

@article{af13dcce4c2642d89205f6a65dd65b94,
title = "Two-Steps Electrochemical Polishing of Laser Powder Bed Fusion 316L Stainless Steel",
abstract = "Laser Powder Bed Fusion fabricated 316L stainless steel test components were electrochemically polished in a non-aqueous electrolytic solution consisting of 1M sodium chloride, ethylene glycol, and 10% ethanol, and in an aqueous commercial electrolyte A2. The influence of the high current densities ranging between 250 and 2000 mA/cm 2 on the surface roughness (Psa, Wsa and Ssa), materials removal weight and thickness reduction with various morphological characteristics were investigated. It is confirmed that polishing at the tranpassive region was feasible in non-aqueous electrolytes where little pitting occurred. A two-step electrochemical process was proposed based on the characterisations to enhance the polishing effect, which consisted of two processes with different electrolytes and current densities. The experimental results indicated that the surface roughness of two-step polished steels with 1500 and 250 mA/cm 2 current densities was reduced by 11.25% than the optimum result of the one-step EP with the non-aqueous electrolyte solution. The weight and thickness reduction were reduced by 3.39% and 9.02%, respectively, more than the optimum results of the one-step EP with the aqueous commercial electrolyte.",
keywords = "Laser Powder Bed Fusion, Additive Manufacturing, 316L Stainless Steel, Electrochemical Polishing, Areal Roughness",
author = "Haitao Zhu and Allan Rennie and Ruifeng Li and Yingtao Tian",
year = "2022",
month = dec,
day = "31",
doi = "10.1016/j.surfin.2022.102442",
language = "English",
volume = "35",
journal = "Surfaces and Interfaces",

}

RIS

TY - JOUR

T1 - Two-Steps Electrochemical Polishing of Laser Powder Bed Fusion 316L Stainless Steel

AU - Zhu, Haitao

AU - Rennie, Allan

AU - Li, Ruifeng

AU - Tian, Yingtao

PY - 2022/12/31

Y1 - 2022/12/31

N2 - Laser Powder Bed Fusion fabricated 316L stainless steel test components were electrochemically polished in a non-aqueous electrolytic solution consisting of 1M sodium chloride, ethylene glycol, and 10% ethanol, and in an aqueous commercial electrolyte A2. The influence of the high current densities ranging between 250 and 2000 mA/cm 2 on the surface roughness (Psa, Wsa and Ssa), materials removal weight and thickness reduction with various morphological characteristics were investigated. It is confirmed that polishing at the tranpassive region was feasible in non-aqueous electrolytes where little pitting occurred. A two-step electrochemical process was proposed based on the characterisations to enhance the polishing effect, which consisted of two processes with different electrolytes and current densities. The experimental results indicated that the surface roughness of two-step polished steels with 1500 and 250 mA/cm 2 current densities was reduced by 11.25% than the optimum result of the one-step EP with the non-aqueous electrolyte solution. The weight and thickness reduction were reduced by 3.39% and 9.02%, respectively, more than the optimum results of the one-step EP with the aqueous commercial electrolyte.

AB - Laser Powder Bed Fusion fabricated 316L stainless steel test components were electrochemically polished in a non-aqueous electrolytic solution consisting of 1M sodium chloride, ethylene glycol, and 10% ethanol, and in an aqueous commercial electrolyte A2. The influence of the high current densities ranging between 250 and 2000 mA/cm 2 on the surface roughness (Psa, Wsa and Ssa), materials removal weight and thickness reduction with various morphological characteristics were investigated. It is confirmed that polishing at the tranpassive region was feasible in non-aqueous electrolytes where little pitting occurred. A two-step electrochemical process was proposed based on the characterisations to enhance the polishing effect, which consisted of two processes with different electrolytes and current densities. The experimental results indicated that the surface roughness of two-step polished steels with 1500 and 250 mA/cm 2 current densities was reduced by 11.25% than the optimum result of the one-step EP with the non-aqueous electrolyte solution. The weight and thickness reduction were reduced by 3.39% and 9.02%, respectively, more than the optimum results of the one-step EP with the aqueous commercial electrolyte.

KW - Laser Powder Bed Fusion

KW - Additive Manufacturing

KW - 316L Stainless Steel

KW - Electrochemical Polishing

KW - Areal Roughness

U2 - 10.1016/j.surfin.2022.102442

DO - 10.1016/j.surfin.2022.102442

M3 - Journal article

VL - 35

JO - Surfaces and Interfaces

JF - Surfaces and Interfaces

M1 - 102442

ER -