Effects of Bath Compositions and Plating Conditions on Appearance of Chromium Plating

Konishi, Saburo; Tadagoshi, Mitsuaki

doi:10.4139/sfj1950.23.585

Cited by 2 publications

(2 citation statements)

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“…(3) Thereafter, a constant effort has been made to improve the chromium plating bath, and many kinds of plating baths based on the Sargent bath have been put to practical use for many years. (4)(5)(6)(7)(8) Among the many efforts, electrolysis with a pulsed current has been reported to improve the surface appearance and mechanical properties of chromium layers (9,10) or chromium alloy layers. (11,12) The European Parliament issued a directive on restrictions of hazardous substances (RoHS directive 2002/95/EC) in January 27, 2003, and thereafter the trend to eliminate the usage of hexavalent chromium compounds has spread throughout the field of chromium plating in the world.…”

Section: Introductionmentioning

confidence: 99%

Alternating Pulsed Electrolysis for Fe-Cr Surface Alloying of Conventional Carbon Steel

Yagi¹,

Oshima²,

Murase³

et al. 2008

ECS Trans.

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Alternating pulsed electrolysis was investigated for the surface modification of carbon steel substrates with carbon contents of 0.2 wt.%, 0.6 wt.% and 0.8 wt.%. This process involves the anodic periodic dissolution of substrates to provide ferrous, or iron(II), ions near the substrate as an electroactive component to form the objective alloy during subsequent cathodic times. The carbon steel substrates dissolved heterogeneously since the substrates had nonuniform texture composed of ferrite, cementite, and pearlite. Although the heterogeneous dissolution tended to provide a rough surface of the iron-chromium alloy layers, which resulted in poor adhesion of the layers, relatively flat and smooth alloy layers were obtained by reducing the amount of dissolved iron during each anodic pulse. Pits and defects that were originally recognized on the carbon steel substrate were gradually infilled and covered with iron-chromium alloy by the pulsed electrolysis.

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Section: Introductionmentioning

confidence: 99%

Alternating Pulsed Electrolysis for Fe-Cr Surface Alloying of Conventional Carbon Steel

Yagi¹,

Oshima²,

Murase³

et al. 2008

ECS Trans.

View full text Add to dashboard Cite

show abstract

“…[4][5][6][7][8] Among the many efforts, electrolysis with a pulsed current has been reported to improve the surface appearance and mechanical properties of chromium layers 9,10) or chromium alloy layers. 11,12) The European Parliament issued a directive on restrictions of hazardous substances (RoHS directive 2002/95/EC) in January 27, 2003, and thereafter the trend to eliminate the usage of hexavalent chromium compounds has spread throughout the field of chromium plating in the world.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Iron-Chromium Alloying of Carbon Steel Surface Using Alternating Pulsed Electrolysis

et al. 2008

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Alternating pulsed electrolysis was investigated for the surface modification of carbon steel substrates with carbon contents of 0.2 mass%, 0.6 mass% and 0.8 mass%. This process involves the anodic periodic dissolution of substrates to provide ferrous or ferric ions near the substrate as an electroactive component to form the objective alloy during subsequent cathodic times. The carbon steel substrates dissolved heterogeneously since the substrates had nonuniform texture composed of ferrite, cementite, and pearlite. Although the heterogeneous dissolution tended to provide a rough surface of the iron-chromium alloy layers, which resulted in poor adhesion of the layers, relatively flat and smooth alloy layers were obtained by reducing the amount of dissolved iron during each anodic pulse. Pits and defects that were originally recognized on the carbon steel substrate were gradually filled in and covered with iron-chromium alloy by the pulsed electrolysis.

show abstract

Effects of Bath Compositions and Plating Conditions on Appearance of Chromium Plating

Cited by 2 publications

References 0 publications

Alternating Pulsed Electrolysis for Fe-Cr Surface Alloying of Conventional Carbon Steel

Alternating Pulsed Electrolysis for Fe-Cr Surface Alloying of Conventional Carbon Steel

Electrochemical Iron-Chromium Alloying of Carbon Steel Surface Using Alternating Pulsed Electrolysis

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