Fundamental aspects and recent developments in electropolishing

Han, Wei; Fang, Fengzhou

doi:10.1016/j.ijmachtools.2019.01.001

Cited by 172 publications

(113 citation statements)

References 149 publications

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“…The electropolishing process (EP) is a widely used method of stainless steel processing, which improves its aesthetic values through smoothening and glossing the surface [1,2] and improving its corrosion resistance at the same time [3,4]. This approach has numerous applications, including the food processing industry and medicine [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Electropolishing of Stainless Steel in Laboratory and Industrial Scale

Lochyński

Charazińska

Łyczkowska-Widłak

et al. 2019

Metals

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Transposing the process scale from laboratory to industrial conditions is a difficult issue that applies to many sectors of the industry. As far as electropolishing of stainless steel is concerned, the limitations connected with a significant increase in the area of electropolished surface should be considered, along with the possibility of defects that may emerge. This paper compares the results of electropolishing of stainless steel in the laboratory and in industrial conditions. For the analyzed conditions, it was determined that the best results, both in laboratory and industrial conditions, were obtained at temperature of 35 • C and current density of 8 A·dm −2 . High temperatures resulted in the emergence of defects on the surface, in particular for industrial samples. The defects were visualized by metallographic images with Nomarski contrast and atomic force microscopy. X-ray photoelectron spectroscopy tests were used to analyze the composition of the passive layer on the electropolished surfaces.

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Section: Introductionmentioning

confidence: 99%

Electropolishing of Stainless Steel in Laboratory and Industrial Scale

Lochyński

Charazińska

Łyczkowska-Widłak

et al. 2019

Metals

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“…Äîáðå â³äîìî, ùî íàéåôåêòèâí³øèì ñïîñîáîì îáðîáëåííÿ ïîâåðõí³ ìåòàë³â ³ ñïëàâ³â º åëåêòðîïîë³ðóâàííÿ (ÅÏ). ÅÏ çàáåçïå÷óº âèð³âíþâàííÿ ïîâåðõí³ çà ðàõóíîê ðîç÷èíåííÿ ì³êðî-íåð³âíîñòåé, äåôåêò³â, âêëþ÷åíü òà çàáðóäíþþ-÷èõ åëåìåíò³â; äëÿ ñïëàâ³â, ÿê ïðàâèëî, â³äáóâàºòüñÿ çì³íà ñêëàäó ïîâåðõíåâîãî øàðó òà ôîðìóâàííÿ çàõèñíèõ ìåòàëîêñèäíèõ ïë³âîê, ùî ñïðèÿº äîäàòêîâîìó ïîêðàùåííþ âëàñòèâîñòåé ïîâåðõí³: çá³ëüøåííþ ì³êðîòâåðäîñò³, çíîñî-ñò³éêîñò³, êîðîç³éíî¿ âèòðèâàëîñò³, òîùî [1].…”

Section: âñòóïunclassified

Electropolishing of stainless steel with a high content of manganese in the deep eutectic mixture Ethaline

Китык¹,

Kun²,

Pavlík³

et al. 2019

VKhKhT

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“…Electropolishing protocol is the process of reducing surface roughness of metals and alloys using optimised anodic dissolution in an appropriate electrolytic bath. 1 Pure metallic titanium and its alloys have been focused as invaluable materials in medicine field. 2,3 To reduce the rate of corrosion of metallic materials, electropolishing has been carried out.…”

Section: Introductionmentioning

confidence: 99%

“…4 The mechanism of electropolishing in aqueous media has comprehensively been understood; whereas that in ionic liquids and deep eutectic solvents is still in early stage. 1,5 Four decisive parameters have been taken into consideration to carry out a successful electropolishing process; electrolyte bath composition, temperature, voltage and current density. 1,5 Throughout the literature, the most focused metallic materials in the electropolishing are stainless steels in aqueous and ionic liquids media.…”

Section: Introductionmentioning

confidence: 99%

“…1,5 Four decisive parameters have been taken into consideration to carry out a successful electropolishing process; electrolyte bath composition, temperature, voltage and current density. 1,5 Throughout the literature, the most focused metallic materials in the electropolishing are stainless steels in aqueous and ionic liquids media. [6][7][8][9] It is also a few work on titanium, nickel and cobalt surface finishing were documented using ionic liquids.…”

Section: Introductionmentioning

confidence: 99%

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Novel Electropolishing of Pure Metallic Titanium in Choline Chloride-Based Various Organic Solvents

et al. 2021

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In this report we present a straightforward and efficient electropolishing methodology of pure metallic titanium in two different electrolytic baths; choline chloride-ethanol (ChCl-eth.) and choline chloride-methanol-butanol (ChCl-meth.-but.) in molar ratios of 1 : 4 and 1 : 6 : 2, respectively at 20°C. The electrolytic baths under study possess relatively low-cost and environmentally benign. In the electropolishing processes, potentiostatic technique was applied. For the surface characterizations both atomic force microscope (AFM) and scanning electron microscopy (SEM) were used. The results showed that titanium surface was polished electrochemically at nanoscale and relatively free from defects. The working voltages of 2 and 1.2 V were applied in ChCl-eth. and ChCl-meth.-but., respectively within a time scale of 40 minutes in the present electrolytic baths. The roughness of pure metallic titanium (ca. 120.5 nm) was reduced to 0.10 nm in ChCl-eth. and 0.66 nm in ChCl-meth.-but.

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Fundamental aspects and recent developments in electropolishing

Cited by 172 publications

References 149 publications

Electropolishing of Stainless Steel in Laboratory and Industrial Scale

Electropolishing of Stainless Steel in Laboratory and Industrial Scale

Electropolishing of stainless steel with a high content of manganese in the deep eutectic mixture Ethaline

Novel Electropolishing of Pure Metallic Titanium in Choline Chloride-Based Various Organic Solvents

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