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chromium electrodeposits

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Published: 31 December 2017
Fig. 8 Scanning electron microscopy images of a chromium electrodeposit on steel with uniform thickness, following the base material morphology. (a) Surface image of a sulfate-catalyst (Sargent bath)-deposited chromium film. Source: Ref 10 , with permission. (b) Focused ion beam cross More
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003833
EISBN: 978-1-62708-183-2
... Abstract This article discusses the corrosion of chromium electrodeposits and the ways for optimizing corrosion resistance. It describes the processing steps and conditions for hard chromium plating. These steps include pretreatment, electroplating, and posttreatment. The article also provides...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001244
EISBN: 978-1-62708-170-2
... Abstract Most decorative chromium coatings have been applied using hexavalent and trivalent plating processes that are based on chromic anhydride. This article provides a discussion on chromium electrodeposits and their use as microdiscontinuous coating for corrosion protection. It focuses...
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Published: 01 January 1994
Fig. 3 Scanning electron micrographs of an electrodeposited chromium film. (a) Fracture cross section. (b) Plan view showing the presence of cracks within the coating More
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006395
EISBN: 978-1-62708-192-4
... on the common issues encountered with electroplating. brush plating carburizing electrodeposited coatings electroless nickel electroless nickel composite coatings electroless plating electroplated chromium electroplated gold electroplated nickel electroplating friction hard coatings jet...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001259
EISBN: 978-1-62708-170-2
.... If suitable additives are used, then chromium can be deposited as an amorphous coating with excellent properties ( Ref 19 ). Recently, it has been shown that amorphous coatings containing chromium, iron, and other minor elements (such as phosphorus and carbon) also can be electrodeposited. Corrosion-resistant...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001243
EISBN: 978-1-62708-170-2
... Abstract Hard chromium plating is produced by electrodeposition from a solution containing chromic acid and a catalytic anion in proper proportion. This article presents the major uses of hard chromium plating, and focuses on the selection factors, plating solutions, solution and process...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003215
EISBN: 978-1-62708-199-3
... conditions of electrodeposition processes for chromium plating, nickel plating, iron plating, cadmium plating, zinc plating, indium plating, lead plating, tin plating, silver plating, gold plating, brass plating, bronze plating, tin-lead plating, zinc-iron plating, and zinc-nickel plating. The article also...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003687
EISBN: 978-1-62708-182-5
... coatings. Electrodeposited coatings are also applied to protect substrate metals. Examples of this application include: Tin, as well as chromium, plating of steel strip for food packaging and other container uses Electrogalvanizing, or zinc plating, of steel strip, sheet, stampings, forgings, wire...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001271
EISBN: 978-1-62708-170-2
... in continuous steel strip plating lines is electrodeposited with one of five metallic coatings: zinc, tin, chromium, and alloys of zinc with either nickel or iron. Several other metallic coatings, such as copper, nickel, brass (Cu-Zn), and terne (Pb-Sn), are also applied by continuous steel strip plating...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001245
EISBN: 978-1-62708-170-2
... from solution. Prior to the introduction of “organic” baths, decorative nickel coatings were produced by polishing nickel-plated parts mechanically, a practice that continued from 1870 to about 1945. Thin layers of chromium were electrodeposited over polished nickel coatings for the first time in 1927...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001323
EISBN: 978-1-62708-170-2
... characteristics of hard chromium plating and prospective alternative processes Table 1 Plate characteristics of hard chromium plating and prospective alternative processes Characteristic Chromium electrodeposition Low-phosphorus electroless nickel (generic) Ni-W-B electrodeposition (Amplate) Ni-W...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001258
EISBN: 978-1-62708-170-2
..., nickel-manganese alloys, and nickel chromium binary and ternary alloys. It also includes information on the environmental, health, and safety considerations for these nickel-base alloys. health and safety considerations nickel alloy plating nickel-chromium plating nickel-cobalt plating nickel...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006491
EISBN: 978-1-62708-207-5
... coatings can be applied. Electrodeposits of chromium, nickel, cadmium, copper, tin, zinc, gold, or silver are used for various decorative and functional applications. A few application examples are listed in Table 3 , and additional background is given on some early examples that have been used ( Ref 2...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003212
EISBN: 978-1-62708-199-3
... the required properties. These processes include solidification treatments such as hot dip coatings, weld-overlay coatings, and thermal spray surfaces; deposition surface treatments such as electrodeposition, chemical vapor deposition, and physical vapor deposition; and heat treatment coatings...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006087
EISBN: 978-1-62708-175-7
... are also reviewed. chemical characteristics chemical embrittlement chemical methods electrodeposition electrolytic methods hydride decomposition metal powder production oxide reduction physical characteristics precipitation thermal decomposition thermite reaction CHEMICAL...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002466
EISBN: 978-1-62708-194-8
... to produce the required properties. These processes include solidification treatments such as hot dip coatings, weld-overlay coatings, and thermal spray surfaces; deposition surface treatments such as electrodeposition, chemical vapor deposition (CVD), and physical vapor deposition (PVD); and heat treatment...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004126
EISBN: 978-1-62708-184-9
... coatings waxes vacuum deposits MILITARY COATINGS are as divergent as electrodeposited chromium plating in gun barrels and the visual comouflage paints applied to tactical equipment such as tanks, aircraft, and ships. The chromium plating in a gun barrel provides high-temperature (approximately 1650...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001275
EISBN: 978-1-62708-170-2
... or hydrofluoric acid salts, phosphoric acid, or other mineral acids. The chemical attack facilitates the dissolution of some surface metal and the formation of a protective film containing complex chromium compounds. A variety of metals and electrodeposited metal coatings, including zinc, cadmium, magnesium...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003217
EISBN: 978-1-62708-199-3
... to carbon steels. Metals such as chromium and titanium cannot be applied to steel by hot dipping because of their high melting points. Tin, which prior to 1937 was applied only by hot dipping, is now almost always electrodeposited. This is because it is very difficult to produce the thin and uniform...