The relationship between polarisation characteristics and the electropolishing behaviour of copper

Neufeld, P.; Zervas, T.

doi:10.1016/0376-4583(79)90057-8

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…9. IPF of AG conventional sample, xy potential, the second region, the plateau region, where current increases slowly with increase in potential, followed by the third region at higher potentials where there is a rapid increase in the current (Ref 72,73).…”

Section: Electropolishingmentioning

confidence: 99%

Studying the Microstructural Effect of Selective Laser Melting and Electropolishing on the Performance of Maraging Steel

Ahmadkhaniha

Möller

Zanella

2021

J. of Materi Eng and Perform

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Selective laser melting is one of the additive manufacturing technologies that have been known for building various and complicated shapes. Despite numerous advantages of additive manufacturing technologies, they strongly influence the microstructure and typically show a relatively high surface roughness. In this study, maraging steel was produced by selective laser melting (SLM), and its microstructure, hardness and corrosion behavior before and after heat treatment were studied and compared to traditionally manufactured ones (wrought, forged samples). In addition, the effect of electropolishing on the surface roughness was evaluated. The microstructural study was carried out by scanning electron microscopy equipped with electron backscattered diffraction in three different sections: parallel to the top surface (xy), transverse cross section (xz) and longitudinal cross section (yz). The same characterization was applied to heat-treated samples, austenitized and quenched as well as the aged ones. The results showed that selective laser melting produced a fine grain martensitic structure (in the as-printed condition) with a surface roughness (Ra) of about 10 µm. There was no sign of preferred texture or anisotropy in the microstructure of as-print SLM materials. The SLM microstructure was similar in all 3 sections (xy, xz and yz). Despite finer microstructure, nano-hardness and corrosion behavior of SLM and conventional wrought maraging steel in heat-treated conditions were similar. Aging resulted in the maximum nano-hardness and the minimum corrosion potential values. Precipitation has the main role in both hardness and corrosion behavior. Electropolishing was optimized and reduced the surface roughness (Ra) by 65%.

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Section: Electropolishingmentioning

confidence: 99%

Studying the Microstructural Effect of Selective Laser Melting and Electropolishing on the Performance of Maraging Steel

Ahmadkhaniha

Möller

Zanella

2021

J. of Materi Eng and Perform

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“…The relationship between the polarization behavior and the surface defects examined with optical microscopy has been studied. 8 Using X-ray photoelectron spectroscopy and Auger electron spectroscopy a viscous liquid film was observed, however, no solid film was found. 9 In addition, the number of in situ surface characterization studies remains limited.…”

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confidence: 99%

Electropolishing of Copper in H[sub 3]PO[sub 4]

Gils

Pen

Hubin

et al. 2007

J. Electrochem. Soc.

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Electropolishing copper in 14M normalH3PnormalO4 was studied using both ex situ and in situ optical techniques. First, an ex situ study revealed the influence of the electropolishing potential on the visual appearance and the surface topography. Gloss together with total integrated scattering reflected the changes in surface roughness as evidenced from optical profilometry images. Second, an in situ optical study using ellipsometry revealed the changes in the thickness of the surface film, as well as roughness modifications. Altogether, this provided the characterization of the whole electropolishing process in terms of roughness and film formation. From the polarization curve combined with the complementary analysis techniques it was observed in situ that an initial regime showed increased roughness of the copper surface, followed by a current limiting plateau exhibiting the best conditions of electropolishing: anodic brightening. For higher applied potentials, a region with pitting and deterioration of the appearance followed.

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Chemical and Electrolytic Polishing

Gabe¹

1994

Corrosion

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The relationship between polarisation characteristics and the electropolishing behaviour of copper

Cited by 6 publications

References 6 publications

Studying the Microstructural Effect of Selective Laser Melting and Electropolishing on the Performance of Maraging Steel

Studying the Microstructural Effect of Selective Laser Melting and Electropolishing on the Performance of Maraging Steel

Electropolishing of Copper in H[sub 3]PO[sub 4]

Chemical and Electrolytic Polishing

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