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nickel-tungsten composite electroplating

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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
...) Plating Nickel-Tungsten Composite Electroplating Spray Coating Applications Cobalt/Molybdenum-Base Conversion Coating Oxide Layer Growth in High-Temperature Deionized Water Other Chromate Conversion Coating Alternatives Electroless nickel (EN) plating has been in existence for several...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003157
EISBN: 978-1-62708-199-3
... into two types: type 1 uses a pure element (nickel, tungsten, or molybdenum) or graphite as the dispersed phase; and type 2 composites use semirefractory oxides (CdO, SnO 2 , or ZnO) as the dispersed phase. In both types, hardness increases and conductivities decrease as the volume fraction of dispersed...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001313
EISBN: 978-1-62708-170-2
... to 50 vol% concentrated HF, using 5 V, 60 Hz alternating current) and alkaline electrolyte (aqueous solution of 2 to 10 wt% NaOH or KOH with a nickel cathode, using a current density of 230 A/dm 2 , or 2300 A/ft 2 ). Molybdenum and tungsten are difficult to plate because the natural oxides formed...
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
.... Baudrand D.W. , Electroless Nickel Plating , Surface Engineering , Vol 5 , ASM Handbook , ASM International , 1994 , p 290 – 310 48. Barmak K. , Banovic S.W. , Petronis C.M. , Susan D.F. , and Marder A.R. , Structure of Electrodeposited Graded Composite Coatings...
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
... 0.0170 349.8 Electroplated hard chrome 0.0469 966.6 Cemented tungsten carbide 0.0274 43.7 Tool steel, R c 63 0.1281 3478.6 Adapted from Ref 25 Friction coefficients for electroless nickel (EN) composites and other common coatings Table 6 Friction coefficients...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001097
EISBN: 978-1-62708-162-7
.... At this level of amperage, tungsten with tungsten failed because of insulation resulting from oxide formation after 3 million operations. Palladium-copper-silver with tungsten failed as a result of sticking. Silver-nickel with silver-palladium failed from metal transfer. 15 V dc, 1.0 A: Life comparison for four...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001106
EISBN: 978-1-62708-162-7
... limitations on the use and fabrication of bonded-abrasive tools. Diamond is chemically inert to inorganic acids, but upon heating it reacts readily with carbide-forming elements such as iron, nickel, cobalt, tantalum, tungsten, titanium, vanadium, boron, chromium, zirconium, and hafnium. Controlled...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... Processes Electroplating Electrodeposits of chromium, nickel, cadmium, copper, tin, zinc, gold, or silver are used for various decorative and functional applications. For example, automotive aluminum bumpers get a zincate treatment, copper strike, and a plating of copper, nickel, and chromium...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... fabrication or as a last step on finished parts. Procedures used for pickling of nickel alloys are governed by both material composition and prior thermal treatment. The necessity of pickling can be avoided by using bright-heating practices; that is, by using inert furnace atmospheres to prevent oxidation...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001263
EISBN: 978-1-62708-170-2
... solution agitation, whether by air, mechanical, cathode rod, or other means. Make sure that no grease, wear particles, or other outside dirt enters the electroforming system by virtue of the agitation system. Alloy electroforming using high-strength materials, such as nickel-cobalt, cobalt-tungsten...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003166
EISBN: 978-1-62708-199-3
... commercially is the W-Ni-Fe ternary. This family of alloys has been used for the full range of WHA applications, having higher mechanical properties than the earlier tungsten-nickel-copper alloys. Binder composition is important in that it strongly influences mechanical properties and determines which, if any...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005707
EISBN: 978-1-62708-171-9
... Copper 1260 2300 Gold 1400 2552 Chromium 1400 2552 Iron 1480 2696 Cobalt 1520 2768 Nickel 1530 2786 Titanium 1740 3164 Hafnium 2400 4352 Molybdenum 2530 4586 Tungsten 3230 5846 Applications of ion implantation in the tooling industry Table 9...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001460
EISBN: 978-1-62708-173-3
... elevated temperatures (as in testing requirements) should be covered by a solderable layer of electroplated nickel (1.5 to 3.8 μm, or 60 to 150 μin.), followed by one of the above protective finishes. This coating structure will prevent the excessive formation of copper-tin intermetallic compounds...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001304
EISBN: 978-1-62708-170-2
..., cobalt, columbium [niobium], molybdenum, nickel, titanium, tungsten, vanadium or zirconium, or any other element to be added to obtain a desired alloying effect; when the specified minimum for copper does not exceed 0.40 per cent; or when the maximum content specified for any of the following elements...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006021
EISBN: 978-1-62708-175-7
...Most important techniques used to make mold inserts Table 1 Most important techniques used to make mold inserts Process Minimum dimensions, µm Roughness (R a ), nm Common materials X-ray lithography (PMMA resist) + electroplating (LIGA) (a) 0.2 10–50 Nickel, nickel alloys...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001306
EISBN: 978-1-62708-170-2
...–0.80 P/M iron-nickel FN-0200 B 783 … 0.3 max 1.0–3.0 2.5 max 92.2–99.0 … P/M nickel steel FN-0205 B 783 … 0.3–0.6 1.0–3.0 2.5 max 91.9–98.7 … P/M nickel steel FN-0208 B 783 … 0.6–0.9 1.0–3.0 2.5 max 91.6–98.4 … P/M iron-nickel FN-0400 B 783 … 0.3 max 3.0–5.5...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001303
EISBN: 978-1-62708-170-2
..., and composition). The widest use of electroplated nickel for wear applications is as an undercoat for chromium ( Ref 9 ). If thick deposits are needed, for example, in building up heavily worn parts, it is usually not practical to do so using only chromium plating, because of its low current efficiency and high...
Book Chapter

Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003685
EISBN: 978-1-62708-182-5
... Aluminum Evaporation Chromium Sputtering Nickel CVD, sputtering Rhenium CVD Tantalum Sputtering, CVD Titanium Evaporation, sputtering Tungsten CVD, sputtering Boron CVD Carbon CVD, ion plating Titanium diboride Evaporation, CVD Silicon carbide Sputtering, CVD...
Book Chapter

Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001087
EISBN: 978-1-62708-162-7
... compounds in placer deposits, sometimes together with gold; they also occur in lode deposits in basic or ultrabasic rocks, where they may be found together with nickel and copper. Most of the world supply of platinum-group metals is currently extracted from lode deposits in the Republic of South Africa...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002171
EISBN: 978-1-62708-188-7
... is an alternative to conventional stamping (or blanking) when intricate patterns or low production volumes are involved. The advantage exists because tooling changes in the PCM process involve artwork changes, while stamping requires the fabrication of precision dies of very tough materials such as tungsten carbide...